Home / 31,490.14-43,456.04-17,342.68

Finding the Fourth Proportional to 31,490.14, 43,456.04 and 17,342.68

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Solution

The fourth proportional to 31,490.14, 43,456.04 and 17,342.68 is: 23,932.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,490.14 : 43,456.04 = 17,342.68 : x
  2. Step 2: Convert to fraction form
    31,490.14/43,456.04 = 17,342.68/x
  3. Step 3: Cross multiply
    31,490.14x = 43,456.04 × 17,342.68
  4. Step 4: Simplify right side
    31,490.14x = 753,644,195.79
  5. Step 5: Solve for x
    x = 753,644,195.79/31,490.14
  6. Step 6: Final answer
    x = 23,932.70

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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.