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Finding the Fourth Proportional to 20,059.14, 30,072.48 and 8,381.10

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Solution

The fourth proportional to 20,059.14, 30,072.48 and 8,381.10 is: 12,564.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,059.14 : 30,072.48 = 8,381.10 : x
  2. Step 2: Convert to fraction form
    20,059.14/30,072.48 = 8,381.10/x
  3. Step 3: Cross multiply
    20,059.14x = 30,072.48 × 8,381.10
  4. Step 4: Simplify right side
    20,059.14x = 252,040,462.13
  5. Step 5: Solve for x
    x = 252,040,462.13/20,059.14
  6. Step 6: Final answer
    x = 12,564.87

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1.5x scale

Why These Related Problems?

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