Home / 15,129.42-22,691.13-14,379.30

Finding the Fourth Proportional to 15,129.42, 22,691.13 and 14,379.30

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Solution

The fourth proportional to 15,129.42, 22,691.13 and 14,379.30 is: 21,566.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,129.42 : 22,691.13 = 14,379.30 : x
  2. Step 2: Convert to fraction form
    15,129.42/22,691.13 = 14,379.30/x
  3. Step 3: Cross multiply
    15,129.42x = 22,691.13 × 14,379.30
  4. Step 4: Simplify right side
    15,129.42x = 326,282,565.61
  5. Step 5: Solve for x
    x = 326,282,565.61/15,129.42
  6. Step 6: Final answer
    x = 21,566.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.