Home / 38,602.31-57,902.85-12,306.87

Finding the Fourth Proportional to 38,602.31, 57,902.85 and 12,306.87

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Solution

The fourth proportional to 38,602.31, 57,902.85 and 12,306.87 is: 18,460.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,602.31 : 57,902.85 = 12,306.87 : x
  2. Step 2: Convert to fraction form
    38,602.31/57,902.85 = 12,306.87/x
  3. Step 3: Cross multiply
    38,602.31x = 57,902.85 × 12,306.87
  4. Step 4: Simplify right side
    38,602.31x = 712,602,847.58
  5. Step 5: Solve for x
    x = 712,602,847.58/38,602.31
  6. Step 6: Final answer
    x = 18,460.11

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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.