Home / 47,138.76-70,731.18-22,181.31

Finding the Fourth Proportional to 47,138.76, 70,731.18 and 22,181.31

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Solution

The fourth proportional to 47,138.76, 70,731.18 and 22,181.31 is: 33,282.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,138.76 : 70,731.18 = 22,181.31 : x
  2. Step 2: Convert to fraction form
    47,138.76/70,731.18 = 22,181.31/x
  3. Step 3: Cross multiply
    47,138.76x = 70,731.18 × 22,181.31
  4. Step 4: Simplify right side
    47,138.76x = 1,568,910,230.25
  5. Step 5: Solve for x
    x = 1,568,910,230.25/47,138.76
  6. Step 6: Final answer
    x = 33,282.81

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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.