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Finding the Fourth Proportional to 36,841.60, 55,286.60 and 20,213.28

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Solution

The fourth proportional to 36,841.60, 55,286.60 and 20,213.28 is: 30,333.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,841.60 : 55,286.60 = 20,213.28 : x
  2. Step 2: Convert to fraction form
    36,841.60/55,286.60 = 20,213.28/x
  3. Step 3: Cross multiply
    36,841.60x = 55,286.60 × 20,213.28
  4. Step 4: Simplify right side
    36,841.60x = 1,117,523,526.05
  5. Step 5: Solve for x
    x = 1,117,523,526.05/36,841.60
  6. Step 6: Final answer
    x = 30,333.20

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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.