Home / 27,188.87-40,778.51-7,198.54

Finding the Fourth Proportional to 27,188.87, 40,778.51 and 7,198.54

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Solution

The fourth proportional to 27,188.87, 40,778.51 and 7,198.54 is: 10,796.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,188.87 : 40,778.51 = 7,198.54 : x
  2. Step 2: Convert to fraction form
    27,188.87/40,778.51 = 7,198.54/x
  3. Step 3: Cross multiply
    27,188.87x = 40,778.51 × 7,198.54
  4. Step 4: Simplify right side
    27,188.87x = 293,545,597.44
  5. Step 5: Solve for x
    x = 293,545,597.44/27,188.87
  6. Step 6: Final answer
    x = 10,796.54

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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.