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Finding the Fourth Proportional to 18,168.92, 27,254.30 and 5,021

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Solution

The fourth proportional to 18,168.92, 27,254.30 and 5,021 is: 7,531.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,168.92 : 27,254.30 = 5,021 : x
  2. Step 2: Convert to fraction form
    18,168.92/27,254.30 = 5,021/x
  3. Step 3: Cross multiply
    18,168.92x = 27,254.30 × 5,021
  4. Step 4: Simplify right side
    18,168.92x = 136,843,840.30
  5. Step 5: Solve for x
    x = 136,843,840.30/18,168.92
  6. Step 6: Final answer
    x = 7,531.75

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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.