Home / 18,443.20-25,454.92-10,889.08

Finding the Fourth Proportional to 18,443.20, 25,454.92 and 10,889.08

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Solution

The fourth proportional to 18,443.20, 25,454.92 and 10,889.08 is: 15,028.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,443.20 : 25,454.92 = 10,889.08 : x
  2. Step 2: Convert to fraction form
    18,443.20/25,454.92 = 10,889.08/x
  3. Step 3: Cross multiply
    18,443.20x = 25,454.92 × 10,889.08
  4. Step 4: Simplify right side
    18,443.20x = 277,180,660.27
  5. Step 5: Solve for x
    x = 277,180,660.27/18,443.20
  6. Step 6: Final answer
    x = 15,028.88

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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.