Home / 27,778.75-41,670.25-11,984.15

Finding the Fourth Proportional to 27,778.75, 41,670.25 and 11,984.15

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Solution

The fourth proportional to 27,778.75, 41,670.25 and 11,984.15 is: 17,977.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,778.75 : 41,670.25 = 11,984.15 : x
  2. Step 2: Convert to fraction form
    27,778.75/41,670.25 = 11,984.15/x
  3. Step 3: Cross multiply
    27,778.75x = 41,670.25 × 11,984.15
  4. Step 4: Simplify right side
    27,778.75x = 499,382,600.75
  5. Step 5: Solve for x
    x = 499,382,600.75/27,778.75
  6. Step 6: Final answer
    x = 17,977.15

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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.