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Finding the Fourth Proportional to 36,679.85, 54,949.03 and 21,900.59

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Solution

The fourth proportional to 36,679.85, 54,949.03 and 21,900.59 is: 32,808.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,679.85 : 54,949.03 = 21,900.59 : x
  2. Step 2: Convert to fraction form
    36,679.85/54,949.03 = 21,900.59/x
  3. Step 3: Cross multiply
    36,679.85x = 54,949.03 × 21,900.59
  4. Step 4: Simplify right side
    36,679.85x = 1,203,416,176.93
  5. Step 5: Solve for x
    x = 1,203,416,176.93/36,679.85
  6. Step 6: Final answer
    x = 32,808.64

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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.