Home / 28,691.05-39,592.15-15,944.98

Finding the Fourth Proportional to 28,691.05, 39,592.15 and 15,944.98

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Solution

The fourth proportional to 28,691.05, 39,592.15 and 15,944.98 is: 22,003.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,691.05 : 39,592.15 = 15,944.98 : x
  2. Step 2: Convert to fraction form
    28,691.05/39,592.15 = 15,944.98/x
  3. Step 3: Cross multiply
    28,691.05x = 39,592.15 × 15,944.98
  4. Step 4: Simplify right side
    28,691.05x = 631,296,039.91
  5. Step 5: Solve for x
    x = 631,296,039.91/28,691.05
  6. Step 6: Final answer
    x = 22,003.24

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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.