Home / 39,572.28-54,607.50-21,663.72

Finding the Fourth Proportional to 39,572.28, 54,607.50 and 21,663.72

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Solution

The fourth proportional to 39,572.28, 54,607.50 and 21,663.72 is: 29,894.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,572.28 : 54,607.50 = 21,663.72 : x
  2. Step 2: Convert to fraction form
    39,572.28/54,607.50 = 21,663.72/x
  3. Step 3: Cross multiply
    39,572.28x = 54,607.50 × 21,663.72
  4. Step 4: Simplify right side
    39,572.28x = 1,183,001,589.90
  5. Step 5: Solve for x
    x = 1,183,001,589.90/39,572.28
  6. Step 6: Final answer
    x = 29,894.70

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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.