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Finding the Fourth Proportional to 22,440, 33,660 and 8,589.36

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Solution

The fourth proportional to 22,440, 33,660 and 8,589.36 is: 12,884.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,440 : 33,660 = 8,589.36 : x
  2. Step 2: Convert to fraction form
    22,440/33,660 = 8,589.36/x
  3. Step 3: Cross multiply
    22,440x = 33,660 × 8,589.36
  4. Step 4: Simplify right side
    22,440x = 289,117,857.60
  5. Step 5: Solve for x
    x = 289,117,857.60/22,440
  6. Step 6: Final answer
    x = 12,884.04

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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.