Home / 20,025.31-27,635.91-11,072.65

Finding the Fourth Proportional to 20,025.31, 27,635.91 and 11,072.65

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Solution

The fourth proportional to 20,025.31, 27,635.91 and 11,072.65 is: 15,280.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,025.31 : 27,635.91 = 11,072.65 : x
  2. Step 2: Convert to fraction form
    20,025.31/27,635.91 = 11,072.65/x
  3. Step 3: Cross multiply
    20,025.31x = 27,635.91 × 11,072.65
  4. Step 4: Simplify right side
    20,025.31x = 306,002,758.86
  5. Step 5: Solve for x
    x = 306,002,758.86/20,025.31
  6. Step 6: Final answer
    x = 15,280.80

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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.