Home / 38,431.20-57,652.80-12,133.44

Finding the Fourth Proportional to 38,431.20, 57,652.80 and 12,133.44

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Solution

The fourth proportional to 38,431.20, 57,652.80 and 12,133.44 is: 18,202.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,431.20 : 57,652.80 = 12,133.44 : x
  2. Step 2: Convert to fraction form
    38,431.20/57,652.80 = 12,133.44/x
  3. Step 3: Cross multiply
    38,431.20x = 57,652.80 × 12,133.44
  4. Step 4: Simplify right side
    38,431.20x = 699,526,789.63
  5. Step 5: Solve for x
    x = 699,526,789.63/38,431.20
  6. Step 6: Final answer
    x = 18,202.05

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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.