Home / 39,637.25-54,699.38-21,732.55

Finding the Fourth Proportional to 39,637.25, 54,699.38 and 21,732.55

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Solution

The fourth proportional to 39,637.25, 54,699.38 and 21,732.55 is: 29,990.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,637.25 : 54,699.38 = 21,732.55 : x
  2. Step 2: Convert to fraction form
    39,637.25/54,699.38 = 21,732.55/x
  3. Step 3: Cross multiply
    39,637.25x = 54,699.38 × 21,732.55
  4. Step 4: Simplify right side
    39,637.25x = 1,188,757,093.47
  5. Step 5: Solve for x
    x = 1,188,757,093.47/39,637.25
  6. Step 6: Final answer
    x = 29,990.91

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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.