Home / 20,563.11-30,809.56-11,186.39

Finding the Fourth Proportional to 20,563.11, 30,809.56 and 11,186.39

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Solution

The fourth proportional to 20,563.11, 30,809.56 and 11,186.39 is: 16,760.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,563.11 : 30,809.56 = 11,186.39 : x
  2. Step 2: Convert to fraction form
    20,563.11/30,809.56 = 11,186.39/x
  3. Step 3: Cross multiply
    20,563.11x = 30,809.56 × 11,186.39
  4. Step 4: Simplify right side
    20,563.11x = 344,647,650.62
  5. Step 5: Solve for x
    x = 344,647,650.62/20,563.11
  6. Step 6: Final answer
    x = 16,760.48

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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.