Home / 36,131.28-49,856.49-20,212.62

Finding the Fourth Proportional to 36,131.28, 49,856.49 and 20,212.62

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Solution

The fourth proportional to 36,131.28, 49,856.49 and 20,212.62 is: 27,890.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,131.28 : 49,856.49 = 20,212.62 : x
  2. Step 2: Convert to fraction form
    36,131.28/49,856.49 = 20,212.62/x
  3. Step 3: Cross multiply
    36,131.28x = 49,856.49 × 20,212.62
  4. Step 4: Simplify right side
    36,131.28x = 1,007,730,286.90
  5. Step 5: Solve for x
    x = 1,007,730,286.90/36,131.28
  6. Step 6: Final answer
    x = 27,890.80

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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.