3.54 is what percent of 21.81 - 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 21.81 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 21.81, so we can write it down as 100%=21.81.
4. We know, that x% equals 3.54 of the output value, so we can write it down as x%=3.54.
5. Now we have two simple equations:
1) 100%=21.81
2) x%=3.54
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%=21.81/3.54
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 3.54 is what percent of 21.81

100%/x%=21.81/3.54
(100/x)*x=(21.81/3.54)*x       - we multiply both sides of the equation by x
100=6.1610169491525*x       - we divide both sides of the equation by (6.1610169491525) to get x
100/6.1610169491525=x
16.231086657497=x
x=16.231086657497

now we have:
3.54 is 16.231086657497% of 21.81