8.2 is what percent of 37.9 - 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 37.9 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 37.9, so we can write it down as 100%=37.9.
4. We know, that x% equals 8.2 of the output value, so we can write it down as x%=8.2.
5. Now we have two simple equations:
1) 100%=37.9
2) x%=8.2
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%=37.9/8.2
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 8.2 is what percent of 37.9

100%/x%=37.9/8.2
(100/x)*x=(37.9/8.2)*x       - we multiply both sides of the equation by x
100=4.6219512195122*x       - we divide both sides of the equation by (4.6219512195122) to get x
100/4.6219512195122=x
21.635883905013=x
x=21.635883905013

now we have:
8.2 is 21.635883905013% of 37.9