Home / 43,843.86-65,778.75-12,679.38

Finding the Fourth Proportional to 43,843.86, 65,778.75 and 12,679.38

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Solution

The fourth proportional to 43,843.86, 65,778.75 and 12,679.38 is: 19,022.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,843.86 : 65,778.75 = 12,679.38 : x
  2. Step 2: Convert to fraction form
    43,843.86/65,778.75 = 12,679.38/x
  3. Step 3: Cross multiply
    43,843.86x = 65,778.75 × 12,679.38
  4. Step 4: Simplify right side
    43,843.86x = 834,033,767.18
  5. Step 5: Solve for x
    x = 834,033,767.18/43,843.86
  6. Step 6: Final answer
    x = 19,022.82

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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.