Home / 39,675.87-54,753.91-21,772.04

Finding the Fourth Proportional to 39,675.87, 54,753.91 and 21,772.04

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Solution

The fourth proportional to 39,675.87, 54,753.91 and 21,772.04 is: 30,046.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,675.87 : 54,753.91 = 21,772.04 : x
  2. Step 2: Convert to fraction form
    39,675.87/54,753.91 = 21,772.04/x
  3. Step 3: Cross multiply
    39,675.87x = 54,753.91 × 21,772.04
  4. Step 4: Simplify right side
    39,675.87x = 1,192,103,990.48
  5. Step 5: Solve for x
    x = 1,192,103,990.48/39,675.87
  6. Step 6: Final answer
    x = 30,046.07

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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.