Home / 27,179.89-40,768.00-7,456.79

Finding the Fourth Proportional to 27,179.89, 40,768.00 and 7,456.79

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Solution

The fourth proportional to 27,179.89, 40,768.00 and 7,456.79 is: 11,184.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,179.89 : 40,768.00 = 7,456.79 : x
  2. Step 2: Convert to fraction form
    27,179.89/40,768.00 = 7,456.79/x
  3. Step 3: Cross multiply
    27,179.89x = 40,768.00 × 7,456.79
  4. Step 4: Simplify right side
    27,179.89x = 303,998,498.00
  5. Step 5: Solve for x
    x = 303,998,498.00/27,179.89
  6. Step 6: Final answer
    x = 11,184.69

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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.