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Finding the Fourth Proportional to 20,165.04, 30,249 and 5,373.88

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Solution

The fourth proportional to 20,165.04, 30,249 and 5,373.88 is: 8,061.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,165.04 : 30,249 = 5,373.88 : x
  2. Step 2: Convert to fraction form
    20,165.04/30,249 = 5,373.88/x
  3. Step 3: Cross multiply
    20,165.04x = 30,249 × 5,373.88
  4. Step 4: Simplify right side
    20,165.04x = 162,554,496.12
  5. Step 5: Solve for x
    x = 162,554,496.12/20,165.04
  6. Step 6: Final answer
    x = 8,061.20

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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.