Home / 38,729.48-58,101.76-12,432.20

Finding the Fourth Proportional to 38,729.48, 58,101.76 and 12,432.20

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Solution

The fourth proportional to 38,729.48, 58,101.76 and 12,432.20 is: 18,650.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,729.48 : 58,101.76 = 12,432.20 : x
  2. Step 2: Convert to fraction form
    38,729.48/58,101.76 = 12,432.20/x
  3. Step 3: Cross multiply
    38,729.48x = 58,101.76 × 12,432.20
  4. Step 4: Simplify right side
    38,729.48x = 722,332,700.67
  5. Step 5: Solve for x
    x = 722,332,700.67/38,729.48
  6. Step 6: Final answer
    x = 18,650.72

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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.