Home / 31,781.52-43,858.80-17,635.68

Finding the Fourth Proportional to 31,781.52, 43,858.80 and 17,635.68

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Solution

The fourth proportional to 31,781.52, 43,858.80 and 17,635.68 is: 24,337.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,781.52 : 43,858.80 = 17,635.68 : x
  2. Step 2: Convert to fraction form
    31,781.52/43,858.80 = 17,635.68/x
  3. Step 3: Cross multiply
    31,781.52x = 43,858.80 × 17,635.68
  4. Step 4: Simplify right side
    31,781.52x = 773,479,761.98
  5. Step 5: Solve for x
    x = 773,479,761.98/31,781.52
  6. Step 6: Final answer
    x = 24,337.41

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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.