Home / 20,107.33-30,177.39-10,249.42

Finding the Fourth Proportional to 20,107.33, 30,177.39 and 10,249.42

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Solution

The fourth proportional to 20,107.33, 30,177.39 and 10,249.42 is: 15,382.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,107.33 : 30,177.39 = 10,249.42 : x
  2. Step 2: Convert to fraction form
    20,107.33/30,177.39 = 10,249.42/x
  3. Step 3: Cross multiply
    20,107.33x = 30,177.39 × 10,249.42
  4. Step 4: Simplify right side
    20,107.33x = 309,300,744.61
  5. Step 5: Solve for x
    x = 309,300,744.61/20,107.33
  6. Step 6: Final answer
    x = 15,382.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.