Home / 36,136.38-49,873.20-20,221.86

Finding the Fourth Proportional to 36,136.38, 49,873.20 and 20,221.86

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Solution

The fourth proportional to 36,136.38, 49,873.20 and 20,221.86 is: 27,908.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,136.38 : 49,873.20 = 20,221.86 : x
  2. Step 2: Convert to fraction form
    36,136.38/49,873.20 = 20,221.86/x
  3. Step 3: Cross multiply
    36,136.38x = 49,873.20 × 20,221.86
  4. Step 4: Simplify right side
    36,136.38x = 1,008,528,868.15
  5. Step 5: Solve for x
    x = 1,008,528,868.15/36,136.38
  6. Step 6: Final answer
    x = 27,908.96

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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.