Home / 20,286.20-27,993.62-11,333.26

Finding the Fourth Proportional to 20,286.20, 27,993.62 and 11,333.26

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Solution

The fourth proportional to 20,286.20, 27,993.62 and 11,333.26 is: 15,639.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,286.20 : 27,993.62 = 11,333.26 : x
  2. Step 2: Convert to fraction form
    20,286.20/27,993.62 = 11,333.26/x
  3. Step 3: Cross multiply
    20,286.20x = 27,993.62 × 11,333.26
  4. Step 4: Simplify right side
    20,286.20x = 317,258,973.80
  5. Step 5: Solve for x
    x = 317,258,973.80/20,286.20
  6. Step 6: Final answer
    x = 15,639.15

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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.