Home / 31,428.27-43,372.40-17,281.62

Finding the Fourth Proportional to 31,428.27, 43,372.40 and 17,281.62

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Solution

The fourth proportional to 31,428.27, 43,372.40 and 17,281.62 is: 23,849.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,428.27 : 43,372.40 = 17,281.62 : x
  2. Step 2: Convert to fraction form
    31,428.27/43,372.40 = 17,281.62/x
  3. Step 3: Cross multiply
    31,428.27x = 43,372.40 × 17,281.62
  4. Step 4: Simplify right side
    31,428.27x = 749,545,248.88
  5. Step 5: Solve for x
    x = 749,545,248.88/31,428.27
  6. Step 6: Final answer
    x = 23,849.40

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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.