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Finding the Fourth Proportional to 22,080, 30,470.48 and 12,008.44

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Solution

The fourth proportional to 22,080, 30,470.48 and 12,008.44 is: 16,571.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,080 : 30,470.48 = 12,008.44 : x
  2. Step 2: Convert to fraction form
    22,080/30,470.48 = 12,008.44/x
  3. Step 3: Cross multiply
    22,080x = 30,470.48 × 12,008.44
  4. Step 4: Simplify right side
    22,080x = 365,902,930.85
  5. Step 5: Solve for x
    x = 365,902,930.85/22,080
  6. Step 6: Final answer
    x = 16,571.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.