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Finding the Fourth Proportional to 31,954.95, 47,932.41 and 8,581.38

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Solution

The fourth proportional to 31,954.95, 47,932.41 and 8,581.38 is: 12,872.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,954.95 : 47,932.41 = 8,581.38 : x
  2. Step 2: Convert to fraction form
    31,954.95/47,932.41 = 8,581.38/x
  3. Step 3: Cross multiply
    31,954.95x = 47,932.41 × 8,581.38
  4. Step 4: Simplify right side
    31,954.95x = 411,326,224.53
  5. Step 5: Solve for x
    x = 411,326,224.53/31,954.95
  6. Step 6: Final answer
    x = 12,872.07

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.