Home / 27,649.48-41,478.78-10,143.88

Finding the Fourth Proportional to 27,649.48, 41,478.78 and 10,143.88

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Solution

The fourth proportional to 27,649.48, 41,478.78 and 10,143.88 is: 15,217.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,649.48 : 41,478.78 = 10,143.88 : x
  2. Step 2: Convert to fraction form
    27,649.48/41,478.78 = 10,143.88/x
  3. Step 3: Cross multiply
    27,649.48x = 41,478.78 × 10,143.88
  4. Step 4: Simplify right side
    27,649.48x = 420,755,766.87
  5. Step 5: Solve for x
    x = 420,755,766.87/27,649.48
  6. Step 6: Final answer
    x = 15,217.49

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1.5x scale

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.