20.4 is what percent of 25.83 - 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 25.83 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 25.83, so we can write it down as 100%=25.83.
4. We know, that x% equals 20.4 of the output value, so we can write it down as x%=20.4.
5. Now we have two simple equations:
1) 100%=25.83
2) x%=20.4
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%=25.83/20.4
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 20.4 is what percent of 25.83

100%/x%=25.83/20.4
(100/x)*x=(25.83/20.4)*x       - we multiply both sides of the equation by x
100=1.2661764705882*x       - we divide both sides of the equation by (1.2661764705882) to get x
100/1.2661764705882=x
78.977932636469=x
x=78.977932636469

now we have:
20.4 is 78.977932636469% of 25.83