Home / 20,097.43-27,734.40-11,144.70

Finding the Fourth Proportional to 20,097.43, 27,734.40 and 11,144.70

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Solution

The fourth proportional to 20,097.43, 27,734.40 and 11,144.70 is: 15,379.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,097.43 : 27,734.40 = 11,144.70 : x
  2. Step 2: Convert to fraction form
    20,097.43/27,734.40 = 11,144.70/x
  3. Step 3: Cross multiply
    20,097.43x = 27,734.40 × 11,144.70
  4. Step 4: Simplify right side
    20,097.43x = 309,091,567.68
  5. Step 5: Solve for x
    x = 309,091,567.68/20,097.43
  6. Step 6: Final answer
    x = 15,379.66

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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.