Home / 31,910.46-47,872.62-12,194.64

Finding the Fourth Proportional to 31,910.46, 47,872.62 and 12,194.64

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Solution

The fourth proportional to 31,910.46, 47,872.62 and 12,194.64 is: 18,294.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,910.46 : 47,872.62 = 12,194.64 : x
  2. Step 2: Convert to fraction form
    31,910.46/47,872.62 = 12,194.64/x
  3. Step 3: Cross multiply
    31,910.46x = 47,872.62 × 12,194.64
  4. Step 4: Simplify right side
    31,910.46x = 583,789,366.76
  5. Step 5: Solve for x
    x = 583,789,366.76/31,910.46
  6. Step 6: Final answer
    x = 18,294.61

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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.