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Finding the Fourth Proportional to 18,471.90, 27,701.10 and 5,995.20

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Solution

The fourth proportional to 18,471.90, 27,701.10 and 5,995.20 is: 8,990.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,471.90 : 27,701.10 = 5,995.20 : x
  2. Step 2: Convert to fraction form
    18,471.90/27,701.10 = 5,995.20/x
  3. Step 3: Cross multiply
    18,471.90x = 27,701.10 × 5,995.20
  4. Step 4: Simplify right side
    18,471.90x = 166,073,634.72
  5. Step 5: Solve for x
    x = 166,073,634.72/18,471.90
  6. Step 6: Final answer
    x = 8,990.61

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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.