Home / 20,524.97-28,324.77-11,572.91

Finding the Fourth Proportional to 20,524.97, 28,324.77 and 11,572.91

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Solution

The fourth proportional to 20,524.97, 28,324.77 and 11,572.91 is: 15,970.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,524.97 : 28,324.77 = 11,572.91 : x
  2. Step 2: Convert to fraction form
    20,524.97/28,324.77 = 11,572.91/x
  3. Step 3: Cross multiply
    20,524.97x = 28,324.77 × 11,572.91
  4. Step 4: Simplify right side
    20,524.97x = 327,800,013.98
  5. Step 5: Solve for x
    x = 327,800,013.98/20,524.97
  6. Step 6: Final answer
    x = 15,970.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.