Home / 27,781.78-41,661.44-10,247.70

Finding the Fourth Proportional to 27,781.78, 41,661.44 and 10,247.70

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Solution

The fourth proportional to 27,781.78, 41,661.44 and 10,247.70 is: 15,367.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,781.78 : 41,661.44 = 10,247.70 : x
  2. Step 2: Convert to fraction form
    27,781.78/41,661.44 = 10,247.70/x
  3. Step 3: Cross multiply
    27,781.78x = 41,661.44 × 10,247.70
  4. Step 4: Simplify right side
    27,781.78x = 426,933,938.69
  5. Step 5: Solve for x
    x = 426,933,938.69/27,781.78
  6. Step 6: Final answer
    x = 15,367.41

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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.