Home / 20,018.28-27,625.24-11,065.78

Finding the Fourth Proportional to 20,018.28, 27,625.24 and 11,065.78

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Solution

The fourth proportional to 20,018.28, 27,625.24 and 11,065.78 is: 15,270.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,018.28 : 27,625.24 = 11,065.78 : x
  2. Step 2: Convert to fraction form
    20,018.28/27,625.24 = 11,065.78/x
  3. Step 3: Cross multiply
    20,018.28x = 27,625.24 × 11,065.78
  4. Step 4: Simplify right side
    20,018.28x = 305,694,876.65
  5. Step 5: Solve for x
    x = 305,694,876.65/20,018.28
  6. Step 6: Final answer
    x = 15,270.78

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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.