Home / 27,811.20-41,708.70-10,039.80

Finding the Fourth Proportional to 27,811.20, 41,708.70 and 10,039.80

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Solution

The fourth proportional to 27,811.20, 41,708.70 and 10,039.80 is: 15,056.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,811.20 : 41,708.70 = 10,039.80 : x
  2. Step 2: Convert to fraction form
    27,811.20/41,708.70 = 10,039.80/x
  3. Step 3: Cross multiply
    27,811.20x = 41,708.70 × 10,039.80
  4. Step 4: Simplify right side
    27,811.20x = 418,747,006.26
  5. Step 5: Solve for x
    x = 418,747,006.26/27,811.20
  6. Step 6: Final answer
    x = 15,056.78

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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.