Home / 38,731.76-58,020.60-30,372.56

Finding the Fourth Proportional to 38,731.76, 58,020.60 and 30,372.56

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Solution

The fourth proportional to 38,731.76, 58,020.60 and 30,372.56 is: 45,498.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,731.76 : 58,020.60 = 30,372.56 : x
  2. Step 2: Convert to fraction form
    38,731.76/58,020.60 = 30,372.56/x
  3. Step 3: Cross multiply
    38,731.76x = 58,020.60 × 30,372.56
  4. Step 4: Simplify right side
    38,731.76x = 1,762,234,154.74
  5. Step 5: Solve for x
    x = 1,762,234,154.74/38,731.76
  6. Step 6: Final answer
    x = 45,498.43

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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.