Home / 28,691.80-39,593.89-15,944.66

Finding the Fourth Proportional to 28,691.80, 39,593.89 and 15,944.66

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Solution

The fourth proportional to 28,691.80, 39,593.89 and 15,944.66 is: 22,003.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,691.80 : 39,593.89 = 15,944.66 : x
  2. Step 2: Convert to fraction form
    28,691.80/39,593.89 = 15,944.66/x
  3. Step 3: Cross multiply
    28,691.80x = 39,593.89 × 15,944.66
  4. Step 4: Simplify right side
    28,691.80x = 631,311,114.13
  5. Step 5: Solve for x
    x = 631,311,114.13/28,691.80
  6. Step 6: Final answer
    x = 22,003.19

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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.