Home / 39,637-54,699.30-21,732.04

Finding the Fourth Proportional to 39,637, 54,699.30 and 21,732.04

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Solution

The fourth proportional to 39,637, 54,699.30 and 21,732.04 is: 29,990.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,637 : 54,699.30 = 21,732.04 : x
  2. Step 2: Convert to fraction form
    39,637/54,699.30 = 21,732.04/x
  3. Step 3: Cross multiply
    39,637x = 54,699.30 × 21,732.04
  4. Step 4: Simplify right side
    39,637x = 1,188,727,375.57
  5. Step 5: Solve for x
    x = 1,188,727,375.57/39,637
  6. Step 6: Final answer
    x = 29,990.35

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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.