Home / 19,572.38-29,357.96-4,781.38

Finding the Fourth Proportional to 19,572.38, 29,357.96 and 4,781.38

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Solution

The fourth proportional to 19,572.38, 29,357.96 and 4,781.38 is: 7,171.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,572.38 : 29,357.96 = 4,781.38 : x
  2. Step 2: Convert to fraction form
    19,572.38/29,357.96 = 4,781.38/x
  3. Step 3: Cross multiply
    19,572.38x = 29,357.96 × 4,781.38
  4. Step 4: Simplify right side
    19,572.38x = 140,371,562.78
  5. Step 5: Solve for x
    x = 140,371,562.78/19,572.38
  6. Step 6: Final answer
    x = 7,171.92

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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.