Home / 36,126.78-49,854.06-20,211.80

Finding the Fourth Proportional to 36,126.78, 49,854.06 and 20,211.80

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Solution

The fourth proportional to 36,126.78, 49,854.06 and 20,211.80 is: 27,891.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,126.78 : 49,854.06 = 20,211.80 : x
  2. Step 2: Convert to fraction form
    36,126.78/49,854.06 = 20,211.80/x
  3. Step 3: Cross multiply
    36,126.78x = 49,854.06 × 20,211.80
  4. Step 4: Simplify right side
    36,126.78x = 1,007,640,289.91
  5. Step 5: Solve for x
    x = 1,007,640,289.91/36,126.78
  6. Step 6: Final answer
    x = 27,891.78

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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.