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Finding the Fourth Proportional to 36,469.80, 54,704.70 and 21,724.20

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Solution

The fourth proportional to 36,469.80, 54,704.70 and 21,724.20 is: 32,586.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,469.80 : 54,704.70 = 21,724.20 : x
  2. Step 2: Convert to fraction form
    36,469.80/54,704.70 = 21,724.20/x
  3. Step 3: Cross multiply
    36,469.80x = 54,704.70 × 21,724.20
  4. Step 4: Simplify right side
    36,469.80x = 1,188,415,843.74
  5. Step 5: Solve for x
    x = 1,188,415,843.74/36,469.80
  6. Step 6: Final answer
    x = 32,586.30

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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.