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Finding the Fourth Proportional to 18,320.63, 27,480.96 and 4,469.63

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Solution

The fourth proportional to 18,320.63, 27,480.96 and 4,469.63 is: 6,704.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,320.63 : 27,480.96 = 4,469.63 : x
  2. Step 2: Convert to fraction form
    18,320.63/27,480.96 = 4,469.63/x
  3. Step 3: Cross multiply
    18,320.63x = 27,480.96 × 4,469.63
  4. Step 4: Simplify right side
    18,320.63x = 122,829,585.84
  5. Step 5: Solve for x
    x = 122,829,585.84/18,320.63
  6. Step 6: Final answer
    x = 6,704.44

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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.