Home / 47,749.80-71,624.34-12,691.92

Finding the Fourth Proportional to 47,749.80, 71,624.34 and 12,691.92

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Solution

The fourth proportional to 47,749.80, 71,624.34 and 12,691.92 is: 19,037.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,749.80 : 71,624.34 = 12,691.92 : x
  2. Step 2: Convert to fraction form
    47,749.80/71,624.34 = 12,691.92/x
  3. Step 3: Cross multiply
    47,749.80x = 71,624.34 × 12,691.92
  4. Step 4: Simplify right side
    47,749.80x = 909,050,393.33
  5. Step 5: Solve for x
    x = 909,050,393.33/47,749.80
  6. Step 6: Final answer
    x = 19,037.78

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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.