Home / 47,408.40-71,112.15-19,321.86

Finding the Fourth Proportional to 47,408.40, 71,112.15 and 19,321.86

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Solution

The fourth proportional to 47,408.40, 71,112.15 and 19,321.86 is: 28,982.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,408.40 : 71,112.15 = 19,321.86 : x
  2. Step 2: Convert to fraction form
    47,408.40/71,112.15 = 19,321.86/x
  3. Step 3: Cross multiply
    47,408.40x = 71,112.15 × 19,321.86
  4. Step 4: Simplify right side
    47,408.40x = 1,374,019,006.60
  5. Step 5: Solve for x
    x = 1,374,019,006.60/47,408.40
  6. Step 6: Final answer
    x = 28,982.61

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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.