Home / 43,634.48-65,450.31-12,469.70

Finding the Fourth Proportional to 43,634.48, 65,450.31 and 12,469.70

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Solution

The fourth proportional to 43,634.48, 65,450.31 and 12,469.70 is: 18,704.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,634.48 : 65,450.31 = 12,469.70 : x
  2. Step 2: Convert to fraction form
    43,634.48/65,450.31 = 12,469.70/x
  3. Step 3: Cross multiply
    43,634.48x = 65,450.31 × 12,469.70
  4. Step 4: Simplify right side
    43,634.48x = 816,145,730.61
  5. Step 5: Solve for x
    x = 816,145,730.61/43,634.48
  6. Step 6: Final answer
    x = 18,704.15

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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.