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Finding the Fourth Proportional to 36,081.80, 54,093.90 and 15,288.20

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Solution

The fourth proportional to 36,081.80, 54,093.90 and 15,288.20 is: 22,920.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,081.80 : 54,093.90 = 15,288.20 : x
  2. Step 2: Convert to fraction form
    36,081.80/54,093.90 = 15,288.20/x
  3. Step 3: Cross multiply
    36,081.80x = 54,093.90 × 15,288.20
  4. Step 4: Simplify right side
    36,081.80x = 826,998,361.98
  5. Step 5: Solve for x
    x = 826,998,361.98/36,081.80
  6. Step 6: Final answer
    x = 22,920.10

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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.