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Finding the Fourth Proportional to 20,026.56, 30,020.22 and 11,146.12

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Solution

The fourth proportional to 20,026.56, 30,020.22 and 11,146.12 is: 16,708.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,026.56 : 30,020.22 = 11,146.12 : x
  2. Step 2: Convert to fraction form
    20,026.56/30,020.22 = 11,146.12/x
  3. Step 3: Cross multiply
    20,026.56x = 30,020.22 × 11,146.12
  4. Step 4: Simplify right side
    20,026.56x = 334,608,974.55
  5. Step 5: Solve for x
    x = 334,608,974.55/20,026.56
  6. Step 6: Final answer
    x = 16,708.26

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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.