Home / 31,512.38-43,488.18-17,173.39

Finding the Fourth Proportional to 31,512.38, 43,488.18 and 17,173.39

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Solution

The fourth proportional to 31,512.38, 43,488.18 and 17,173.39 is: 23,699.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,512.38 : 43,488.18 = 17,173.39 : x
  2. Step 2: Convert to fraction form
    31,512.38/43,488.18 = 17,173.39/x
  3. Step 3: Cross multiply
    31,512.38x = 43,488.18 × 17,173.39
  4. Step 4: Simplify right side
    31,512.38x = 746,839,475.53
  5. Step 5: Solve for x
    x = 746,839,475.53/31,512.38
  6. Step 6: Final answer
    x = 23,699.88

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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.