Home / 31,974.97-47,966.84-10,909.36

Finding the Fourth Proportional to 31,974.97, 47,966.84 and 10,909.36

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Solution

The fourth proportional to 31,974.97, 47,966.84 and 10,909.36 is: 16,365.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,974.97 : 47,966.84 = 10,909.36 : x
  2. Step 2: Convert to fraction form
    31,974.97/47,966.84 = 10,909.36/x
  3. Step 3: Cross multiply
    31,974.97x = 47,966.84 × 10,909.36
  4. Step 4: Simplify right side
    31,974.97x = 523,287,525.62
  5. Step 5: Solve for x
    x = 523,287,525.62/31,974.97
  6. Step 6: Final answer
    x = 16,365.54

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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.