Home / 36,331.42-50,136.92-20,418.56

Finding the Fourth Proportional to 36,331.42, 50,136.92 and 20,418.56

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Solution

The fourth proportional to 36,331.42, 50,136.92 and 20,418.56 is: 28,177.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,331.42 : 50,136.92 = 20,418.56 : x
  2. Step 2: Convert to fraction form
    36,331.42/50,136.92 = 20,418.56/x
  3. Step 3: Cross multiply
    36,331.42x = 50,136.92 × 20,418.56
  4. Step 4: Simplify right side
    36,331.42x = 1,023,723,732.48
  5. Step 5: Solve for x
    x = 1,023,723,732.48/36,331.42
  6. Step 6: Final answer
    x = 28,177.37

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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.