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Finding the Fourth Proportional to 18,168.20, 27,252.30 and 16,440.20

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Solution

The fourth proportional to 18,168.20, 27,252.30 and 16,440.20 is: 24,660.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,168.20 : 27,252.30 = 16,440.20 : x
  2. Step 2: Convert to fraction form
    18,168.20/27,252.30 = 16,440.20/x
  3. Step 3: Cross multiply
    18,168.20x = 27,252.30 × 16,440.20
  4. Step 4: Simplify right side
    18,168.20x = 448,033,262.46
  5. Step 5: Solve for x
    x = 448,033,262.46/18,168.20
  6. Step 6: Final answer
    x = 24,660.30

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1.5x scale

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.