Home / 47,647.12-71,471.76-18,078.88

Finding the Fourth Proportional to 47,647.12, 71,471.76 and 18,078.88

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Solution

The fourth proportional to 47,647.12, 71,471.76 and 18,078.88 is: 27,118.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,647.12 : 71,471.76 = 18,078.88 : x
  2. Step 2: Convert to fraction form
    47,647.12/71,471.76 = 18,078.88/x
  3. Step 3: Cross multiply
    47,647.12x = 71,471.76 × 18,078.88
  4. Step 4: Simplify right side
    47,647.12x = 1,292,129,372.43
  5. Step 5: Solve for x
    x = 1,292,129,372.43/47,647.12
  6. Step 6: Final answer
    x = 27,118.73

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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.