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Finding the Fourth Proportional to 31,637.40, 43,657.41 and 17,489.13

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Solution

The fourth proportional to 31,637.40, 43,657.41 and 17,489.13 is: 24,133.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,637.40 : 43,657.41 = 17,489.13 : x
  2. Step 2: Convert to fraction form
    31,637.40/43,657.41 = 17,489.13/x
  3. Step 3: Cross multiply
    31,637.40x = 43,657.41 × 17,489.13
  4. Step 4: Simplify right side
    31,637.40x = 763,530,118.95
  5. Step 5: Solve for x
    x = 763,530,118.95/31,637.40
  6. Step 6: Final answer
    x = 24,133.78

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