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Finding the Fourth Proportional to 38,441.60, 57,748.80 and 36,972.80

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Solution

The fourth proportional to 38,441.60, 57,748.80 and 36,972.80 is: 55,542.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,441.60 : 57,748.80 = 36,972.80 : x
  2. Step 2: Convert to fraction form
    38,441.60/57,748.80 = 36,972.80/x
  3. Step 3: Cross multiply
    38,441.60x = 57,748.80 × 36,972.80
  4. Step 4: Simplify right side
    38,441.60x = 2,135,134,832.64
  5. Step 5: Solve for x
    x = 2,135,134,832.64/38,441.60
  6. Step 6: Final answer
    x = 55,542.30

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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.