Home / 36,786.78-50,766.12-20,019.78

Finding the Fourth Proportional to 36,786.78, 50,766.12 and 20,019.78

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Solution

The fourth proportional to 36,786.78, 50,766.12 and 20,019.78 is: 27,627.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,786.78 : 50,766.12 = 20,019.78 : x
  2. Step 2: Convert to fraction form
    36,786.78/50,766.12 = 20,019.78/x
  3. Step 3: Cross multiply
    36,786.78x = 50,766.12 × 20,019.78
  4. Step 4: Simplify right side
    36,786.78x = 1,016,326,553.85
  5. Step 5: Solve for x
    x = 1,016,326,553.85/36,786.78
  6. Step 6: Final answer
    x = 27,627.49

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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.