Home / 36,255.41-50,031.70-20,121.78

Finding the Fourth Proportional to 36,255.41, 50,031.70 and 20,121.78

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Solution

The fourth proportional to 36,255.41, 50,031.70 and 20,121.78 is: 27,767.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,255.41 : 50,031.70 = 20,121.78 : x
  2. Step 2: Convert to fraction form
    36,255.41/50,031.70 = 20,121.78/x
  3. Step 3: Cross multiply
    36,255.41x = 50,031.70 × 20,121.78
  4. Step 4: Simplify right side
    36,255.41x = 1,006,726,843.26
  5. Step 5: Solve for x
    x = 1,006,726,843.26/36,255.41
  6. Step 6: Final answer
    x = 27,767.63

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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.