Home / 47,728.62-71,575.92-18,138.60

Finding the Fourth Proportional to 47,728.62, 71,575.92 and 18,138.60

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Solution

The fourth proportional to 47,728.62, 71,575.92 and 18,138.60 is: 27,201.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,728.62 : 71,575.92 = 18,138.60 : x
  2. Step 2: Convert to fraction form
    47,728.62/71,575.92 = 18,138.60/x
  3. Step 3: Cross multiply
    47,728.62x = 71,575.92 × 18,138.60
  4. Step 4: Simplify right side
    47,728.62x = 1,298,286,982.51
  5. Step 5: Solve for x
    x = 1,298,286,982.51/47,728.62
  6. Step 6: Final answer
    x = 27,201.44

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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.