Home / 39,198.18-58,805.66-12,179.96

Finding the Fourth Proportional to 39,198.18, 58,805.66 and 12,179.96

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Solution

The fourth proportional to 39,198.18, 58,805.66 and 12,179.96 is: 18,272.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,198.18 : 58,805.66 = 12,179.96 : x
  2. Step 2: Convert to fraction form
    39,198.18/58,805.66 = 12,179.96/x
  3. Step 3: Cross multiply
    39,198.18x = 58,805.66 × 12,179.96
  4. Step 4: Simplify right side
    39,198.18x = 716,250,231.65
  5. Step 5: Solve for x
    x = 716,250,231.65/39,198.18
  6. Step 6: Final answer
    x = 18,272.54

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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.