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Finding the Fourth Proportional to 14,549.99, 20,081.60 and 8,581.31

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Solution

The fourth proportional to 14,549.99, 20,081.60 and 8,581.31 is: 11,843.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,549.99 : 20,081.60 = 8,581.31 : x
  2. Step 2: Convert to fraction form
    14,549.99/20,081.60 = 8,581.31/x
  3. Step 3: Cross multiply
    14,549.99x = 20,081.60 × 8,581.31
  4. Step 4: Simplify right side
    14,549.99x = 172,326,434.90
  5. Step 5: Solve for x
    x = 172,326,434.90/14,549.99
  6. Step 6: Final answer
    x = 11,843.75

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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.