39.36 is what percent of 20.64 - 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 20.64 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 20.64, so we can write it down as 100%=20.64.
4. We know, that x% equals 39.36 of the output value, so we can write it down as x%=39.36.
5. Now we have two simple equations:
1) 100%=20.64
2) x%=39.36
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%=20.64/39.36
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 39.36 is what percent of 20.64

100%/x%=20.64/39.36
(100/x)*x=(20.64/39.36)*x       - we multiply both sides of the equation by x
100=0.52439024390244*x       - we divide both sides of the equation by (0.52439024390244) to get x
100/0.52439024390244=x
190.6976744186=x
x=190.6976744186

now we have:
39.36 is 190.6976744186% of 20.64