20.24 is what percent of 391.09 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 391.09 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 100% equals 391.09, so we can write it down as 100%=391.09.
4. We know, that x% equals 20.24 of the output value, so we can write it down as x%=20.24.
5. Now we have two simple equations:
1) 100%=391.09
2) x%=20.24
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=391.09/20.24
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 20.24 is what percent of 391.09

100%/x%=391.09/20.24
(100/x)*x=(391.09/20.24)*x       - we multiply both sides of the equation by x
100=19.322628458498*x       - we divide both sides of the equation by (19.322628458498) to get x
100/19.322628458498=x
5.1752793474648=x
x=5.1752793474648

now we have:
20.24 is 5.1752793474648% of 391.09