Home / 38,930.46-58,385.97-12,642.72

Finding the Fourth Proportional to 38,930.46, 58,385.97 and 12,642.72

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Solution

The fourth proportional to 38,930.46, 58,385.97 and 12,642.72 is: 18,960.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,930.46 : 58,385.97 = 12,642.72 : x
  2. Step 2: Convert to fraction form
    38,930.46/58,385.97 = 12,642.72/x
  3. Step 3: Cross multiply
    38,930.46x = 58,385.97 × 12,642.72
  4. Step 4: Simplify right side
    38,930.46x = 738,157,470.64
  5. Step 5: Solve for x
    x = 738,157,470.64/38,930.46
  6. Step 6: Final answer
    x = 18,960.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.