Home / 39,174.90-58,787.55-21,657.30

Finding the Fourth Proportional to 39,174.90, 58,787.55 and 21,657.30

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Solution

The fourth proportional to 39,174.90, 58,787.55 and 21,657.30 is: 32,499.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,174.90 : 58,787.55 = 21,657.30 : x
  2. Step 2: Convert to fraction form
    39,174.90/58,787.55 = 21,657.30/x
  3. Step 3: Cross multiply
    39,174.90x = 58,787.55 × 21,657.30
  4. Step 4: Simplify right side
    39,174.90x = 1,273,179,606.62
  5. Step 5: Solve for x
    x = 1,273,179,606.62/39,174.90
  6. Step 6: Final answer
    x = 32,499.88

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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.