Finding the Fourth Proportional to 27,664.99, 38,175.11 and 15,725.99
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Solution
The fourth proportional to 27,664.99, 38,175.11 and 15,725.99 is: 21,700.41
Step by Step Solution
- Step 1: Write the proportion equation
27,664.99 : 38,175.11 = 15,725.99 : x - Step 2: Convert to fraction form
27,664.99/38,175.11 = 15,725.99/x - Step 3: Cross multiply
27,664.99x = 38,175.11 × 15,725.99 - Step 4: Simplify right side
27,664.99x = 600,341,398.11 - Step 5: Solve for x
x = 600,341,398.11/27,664.99 - Step 6: Final answer
x = 21,700.41
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.