Home / 31,286.28-43,174.80-16,946.13

Finding the Fourth Proportional to 31,286.28, 43,174.80 and 16,946.13

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Solution

The fourth proportional to 31,286.28, 43,174.80 and 16,946.13 is: 23,385.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,286.28 : 43,174.80 = 16,946.13 : x
  2. Step 2: Convert to fraction form
    31,286.28/43,174.80 = 16,946.13/x
  3. Step 3: Cross multiply
    31,286.28x = 43,174.80 × 16,946.13
  4. Step 4: Simplify right side
    31,286.28x = 731,645,773.52
  5. Step 5: Solve for x
    x = 731,645,773.52/31,286.28
  6. Step 6: Final answer
    x = 23,385.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.