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Finding the Fourth Proportional to 18,152.80, 27,229.20 and 16,403.20

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Solution

The fourth proportional to 18,152.80, 27,229.20 and 16,403.20 is: 24,604.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,152.80 : 27,229.20 = 16,403.20 : x
  2. Step 2: Convert to fraction form
    18,152.80/27,229.20 = 16,403.20/x
  3. Step 3: Cross multiply
    18,152.80x = 27,229.20 × 16,403.20
  4. Step 4: Simplify right side
    18,152.80x = 446,646,013.44
  5. Step 5: Solve for x
    x = 446,646,013.44/18,152.80
  6. Step 6: Final answer
    x = 24,604.80

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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.