Home / 43,822.20-65,657.70-20,400.60

Finding the Fourth Proportional to 43,822.20, 65,657.70 and 20,400.60

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Solution

The fourth proportional to 43,822.20, 65,657.70 and 20,400.60 is: 30,565.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,822.20 : 65,657.70 = 20,400.60 : x
  2. Step 2: Convert to fraction form
    43,822.20/65,657.70 = 20,400.60/x
  3. Step 3: Cross multiply
    43,822.20x = 65,657.70 × 20,400.60
  4. Step 4: Simplify right side
    43,822.20x = 1,339,456,474.62
  5. Step 5: Solve for x
    x = 1,339,456,474.62/43,822.20
  6. Step 6: Final answer
    x = 30,565.71

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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.