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Finding the Fourth Proportional to 38,164.60, 57,230.70 and 18,449.20

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Solution

The fourth proportional to 38,164.60, 57,230.70 and 18,449.20 is: 27,665.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,164.60 : 57,230.70 = 18,449.20 : x
  2. Step 2: Convert to fraction form
    38,164.60/57,230.70 = 18,449.20/x
  3. Step 3: Cross multiply
    38,164.60x = 57,230.70 × 18,449.20
  4. Step 4: Simplify right side
    38,164.60x = 1,055,860,630.44
  5. Step 5: Solve for x
    x = 1,055,860,630.44/38,164.60
  6. Step 6: Final answer
    x = 27,665.97

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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.