13.6 is what percent of 321.3 - 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 321.3 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 321.3, so we can write it down as 100%=321.3.
4. We know, that x% equals 13.6 of the output value, so we can write it down as x%=13.6.
5. Now we have two simple equations:
1) 100%=321.3
2) x%=13.6
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%=321.3/13.6
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 13.6 is what percent of 321.3

100%/x%=321.3/13.6
(100/x)*x=(321.3/13.6)*x       - we multiply both sides of the equation by x
100=23.625*x       - we divide both sides of the equation by (23.625) to get x
100/23.625=x
4.2328042328042=x
x=4.2328042328042

now we have:
13.6 is 4.2328042328042% of 321.3