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Finding the Fourth Proportional to 22,326.32, 30,808 and 12,897.92

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Solution

The fourth proportional to 22,326.32, 30,808 and 12,897.92 is: 17,797.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,326.32 : 30,808 = 12,897.92 : x
  2. Step 2: Convert to fraction form
    22,326.32/30,808 = 12,897.92/x
  3. Step 3: Cross multiply
    22,326.32x = 30,808 × 12,897.92
  4. Step 4: Simplify right side
    22,326.32x = 397,359,119.36
  5. Step 5: Solve for x
    x = 397,359,119.36/22,326.32
  6. Step 6: Final answer
    x = 17,797.79

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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.