Home / 38,956.20-58,397.28-12,642.54

Finding the Fourth Proportional to 38,956.20, 58,397.28 and 12,642.54

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Solution

The fourth proportional to 38,956.20, 58,397.28 and 12,642.54 is: 18,951.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,956.20 : 58,397.28 = 12,642.54 : x
  2. Step 2: Convert to fraction form
    38,956.20/58,397.28 = 12,642.54/x
  3. Step 3: Cross multiply
    38,956.20x = 58,397.28 × 12,642.54
  4. Step 4: Simplify right side
    38,956.20x = 738,289,948.29
  5. Step 5: Solve for x
    x = 738,289,948.29/38,956.20
  6. Step 6: Final answer
    x = 18,951.80

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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.