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Finding the Fourth Proportional to 36,772.80, 55,173.60 and 13,401.60

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Solution

The fourth proportional to 36,772.80, 55,173.60 and 13,401.60 is: 20,107.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,772.80 : 55,173.60 = 13,401.60 : x
  2. Step 2: Convert to fraction form
    36,772.80/55,173.60 = 13,401.60/x
  3. Step 3: Cross multiply
    36,772.80x = 55,173.60 × 13,401.60
  4. Step 4: Simplify right side
    36,772.80x = 739,414,517.76
  5. Step 5: Solve for x
    x = 739,414,517.76/36,772.80
  6. Step 6: Final answer
    x = 20,107.65

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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.