Home / 20,033.78-27,645.92-11,081.25

Finding the Fourth Proportional to 20,033.78, 27,645.92 and 11,081.25

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Solution

The fourth proportional to 20,033.78, 27,645.92 and 11,081.25 is: 15,291.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,033.78 : 27,645.92 = 11,081.25 : x
  2. Step 2: Convert to fraction form
    20,033.78/27,645.92 = 11,081.25/x
  3. Step 3: Cross multiply
    20,033.78x = 27,645.92 × 11,081.25
  4. Step 4: Simplify right side
    20,033.78x = 306,351,351
  5. Step 5: Solve for x
    x = 306,351,351/20,033.78
  6. Step 6: Final answer
    x = 15,291.74

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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.