Home / 40,318.31-60,487.21-12,236.72

Finding the Fourth Proportional to 40,318.31, 60,487.21 and 12,236.72

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Solution

The fourth proportional to 40,318.31, 60,487.21 and 12,236.72 is: 18,358.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,318.31 : 60,487.21 = 12,236.72 : x
  2. Step 2: Convert to fraction form
    40,318.31/60,487.21 = 12,236.72/x
  3. Step 3: Cross multiply
    40,318.31x = 60,487.21 × 12,236.72
  4. Step 4: Simplify right side
    40,318.31x = 740,165,036.62
  5. Step 5: Solve for x
    x = 740,165,036.62/40,318.31
  6. Step 6: Final answer
    x = 18,358.04

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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.