Home / 39,637.20-54,699.12-21,732.96

Finding the Fourth Proportional to 39,637.20, 54,699.12 and 21,732.96

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Solution

The fourth proportional to 39,637.20, 54,699.12 and 21,732.96 is: 29,991.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,637.20 : 54,699.12 = 21,732.96 : x
  2. Step 2: Convert to fraction form
    39,637.20/54,699.12 = 21,732.96/x
  3. Step 3: Cross multiply
    39,637.20x = 54,699.12 × 21,732.96
  4. Step 4: Simplify right side
    39,637.20x = 1,188,773,787.00
  5. Step 5: Solve for x
    x = 1,188,773,787.00/39,637.20
  6. Step 6: Final answer
    x = 29,991.37

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1.5x scale

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.