Home / 40,517.88-60,787.09-12,439.37

Finding the Fourth Proportional to 40,517.88, 60,787.09 and 12,439.37

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Solution

The fourth proportional to 40,517.88, 60,787.09 and 12,439.37 is: 18,662.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,517.88 : 60,787.09 = 12,439.37 : x
  2. Step 2: Convert to fraction form
    40,517.88/60,787.09 = 12,439.37/x
  3. Step 3: Cross multiply
    40,517.88x = 60,787.09 × 12,439.37
  4. Step 4: Simplify right side
    40,517.88x = 756,153,103.73
  5. Step 5: Solve for x
    x = 756,153,103.73/40,517.88
  6. Step 6: Final answer
    x = 18,662.21

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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.