Home / 40,311.31-60,467.11-12,231.60

Finding the Fourth Proportional to 40,311.31, 60,467.11 and 12,231.60

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Solution

The fourth proportional to 40,311.31, 60,467.11 and 12,231.60 is: 18,347.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,311.31 : 60,467.11 = 12,231.60 : x
  2. Step 2: Convert to fraction form
    40,311.31/60,467.11 = 12,231.60/x
  3. Step 3: Cross multiply
    40,311.31x = 60,467.11 × 12,231.60
  4. Step 4: Simplify right side
    40,311.31x = 739,609,502.68
  5. Step 5: Solve for x
    x = 739,609,502.68/40,311.31
  6. Step 6: Final answer
    x = 18,347.44

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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.