Home / 39,295.97-54,229.01-21,391.54

Finding the Fourth Proportional to 39,295.97, 54,229.01 and 21,391.54

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Solution

The fourth proportional to 39,295.97, 54,229.01 and 21,391.54 is: 29,520.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,295.97 : 54,229.01 = 21,391.54 : x
  2. Step 2: Convert to fraction form
    39,295.97/54,229.01 = 21,391.54/x
  3. Step 3: Cross multiply
    39,295.97x = 54,229.01 × 21,391.54
  4. Step 4: Simplify right side
    39,295.97x = 1,160,041,658.47
  5. Step 5: Solve for x
    x = 1,160,041,658.47/39,295.97
  6. Step 6: Final answer
    x = 29,520.63

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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.