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Finding the Fourth Proportional to 31,491.61, 43,456.43 and 17,344.46

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Solution

The fourth proportional to 31,491.61, 43,456.43 and 17,344.46 is: 23,934.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,491.61 : 43,456.43 = 17,344.46 : x
  2. Step 2: Convert to fraction form
    31,491.61/43,456.43 = 17,344.46/x
  3. Step 3: Cross multiply
    31,491.61x = 43,456.43 × 17,344.46
  4. Step 4: Simplify right side
    31,491.61x = 753,728,219.44
  5. Step 5: Solve for x
    x = 753,728,219.44/31,491.61
  6. Step 6: Final answer
    x = 23,934.25

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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.