Home / 20,168.97-27,834.87-11,218.20

Finding the Fourth Proportional to 20,168.97, 27,834.87 and 11,218.20

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Solution

The fourth proportional to 20,168.97, 27,834.87 and 11,218.20 is: 15,482.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,168.97 : 27,834.87 = 11,218.20 : x
  2. Step 2: Convert to fraction form
    20,168.97/27,834.87 = 11,218.20/x
  3. Step 3: Cross multiply
    20,168.97x = 27,834.87 × 11,218.20
  4. Step 4: Simplify right side
    20,168.97x = 312,257,138.63
  5. Step 5: Solve for x
    x = 312,257,138.63/20,168.97
  6. Step 6: Final answer
    x = 15,482.06

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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.