Home / 39,625.97-54,683.58-21,721.73

Finding the Fourth Proportional to 39,625.97, 54,683.58 and 21,721.73

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Solution

The fourth proportional to 39,625.97, 54,683.58 and 21,721.73 is: 29,975.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,625.97 : 54,683.58 = 21,721.73 : x
  2. Step 2: Convert to fraction form
    39,625.97/54,683.58 = 21,721.73/x
  3. Step 3: Cross multiply
    39,625.97x = 54,683.58 × 21,721.73
  4. Step 4: Simplify right side
    39,625.97x = 1,187,822,096.90
  5. Step 5: Solve for x
    x = 1,187,822,096.90/39,625.97
  6. Step 6: Final answer
    x = 29,975.85

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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.