Home / 39,377.58-54,351.42-22,391.78

Finding the Fourth Proportional to 39,377.58, 54,351.42 and 22,391.78

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Solution

The fourth proportional to 39,377.58, 54,351.42 and 22,391.78 is: 30,906.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,377.58 : 54,351.42 = 22,391.78 : x
  2. Step 2: Convert to fraction form
    39,377.58/54,351.42 = 22,391.78/x
  3. Step 3: Cross multiply
    39,377.58x = 54,351.42 × 22,391.78
  4. Step 4: Simplify right side
    39,377.58x = 1,217,025,115.28
  5. Step 5: Solve for x
    x = 1,217,025,115.28/39,377.58
  6. Step 6: Final answer
    x = 30,906.55

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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.