Home / 31,834.79-47,753.78-12,114.88

Finding the Fourth Proportional to 31,834.79, 47,753.78 and 12,114.88

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Solution

The fourth proportional to 31,834.79, 47,753.78 and 12,114.88 is: 18,172.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,834.79 : 47,753.78 = 12,114.88 : x
  2. Step 2: Convert to fraction form
    31,834.79/47,753.78 = 12,114.88/x
  3. Step 3: Cross multiply
    31,834.79x = 47,753.78 × 12,114.88
  4. Step 4: Simplify right side
    31,834.79x = 578,531,134.29
  5. Step 5: Solve for x
    x = 578,531,134.29/31,834.79
  6. Step 6: Final answer
    x = 18,172.92

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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.