Home / 31,286.29-43,175.12-16,946.15

Finding the Fourth Proportional to 31,286.29, 43,175.12 and 16,946.15

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Solution

The fourth proportional to 31,286.29, 43,175.12 and 16,946.15 is: 23,385.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,286.29 : 43,175.12 = 16,946.15 : x
  2. Step 2: Convert to fraction form
    31,286.29/43,175.12 = 16,946.15/x
  3. Step 3: Cross multiply
    31,286.29x = 43,175.12 × 16,946.15
  4. Step 4: Simplify right side
    31,286.29x = 731,652,059.79
  5. Step 5: Solve for x
    x = 731,652,059.79/31,286.29
  6. Step 6: Final answer
    x = 23,385.71

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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.