Home / 31,974.68-47,966.96-10,909.80

Finding the Fourth Proportional to 31,974.68, 47,966.96 and 10,909.80

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Solution

The fourth proportional to 31,974.68, 47,966.96 and 10,909.80 is: 16,366.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,974.68 : 47,966.96 = 10,909.80 : x
  2. Step 2: Convert to fraction form
    31,974.68/47,966.96 = 10,909.80/x
  3. Step 3: Cross multiply
    31,974.68x = 47,966.96 × 10,909.80
  4. Step 4: Simplify right side
    31,974.68x = 523,309,940.21
  5. Step 5: Solve for x
    x = 523,309,940.21/31,974.68
  6. Step 6: Final answer
    x = 16,366.39

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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.