6.86 is what percent of 39.6 - 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 39.6 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 39.6, so we can write it down as 100%=39.6.
4. We know, that x% equals 6.86 of the output value, so we can write it down as x%=6.86.
5. Now we have two simple equations:
1) 100%=39.6
2) x%=6.86
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%=39.6/6.86
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 6.86 is what percent of 39.6

100%/x%=39.6/6.86
(100/x)*x=(39.6/6.86)*x       - we multiply both sides of the equation by x
100=5.7725947521866*x       - we divide both sides of the equation by (5.7725947521866) to get x
100/5.7725947521866=x
17.323232323232=x
x=17.323232323232

now we have:
6.86 is 17.323232323232% of 39.6