Home / 27,192.78-40,805.60-9,661.28

Finding the Fourth Proportional to 27,192.78, 40,805.60 and 9,661.28

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Solution

The fourth proportional to 27,192.78, 40,805.60 and 9,661.28 is: 14,497.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,192.78 : 40,805.60 = 9,661.28 : x
  2. Step 2: Convert to fraction form
    27,192.78/40,805.60 = 9,661.28/x
  3. Step 3: Cross multiply
    27,192.78x = 40,805.60 × 9,661.28
  4. Step 4: Simplify right side
    27,192.78x = 394,234,074.83
  5. Step 5: Solve for x
    x = 394,234,074.83/27,192.78
  6. Step 6: Final answer
    x = 14,497.75

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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.