Home / 27,581.78-41,393.46-20,205.11

Finding the Fourth Proportional to 27,581.78, 41,393.46 and 20,205.11

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Solution

The fourth proportional to 27,581.78, 41,393.46 and 20,205.11 is: 30,322.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,581.78 : 41,393.46 = 20,205.11 : x
  2. Step 2: Convert to fraction form
    27,581.78/41,393.46 = 20,205.11/x
  3. Step 3: Cross multiply
    27,581.78x = 41,393.46 × 20,205.11
  4. Step 4: Simplify right side
    27,581.78x = 836,359,412.58
  5. Step 5: Solve for x
    x = 836,359,412.58/27,581.78
  6. Step 6: Final answer
    x = 30,322.89

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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.