Home / 36,121.46-49,849.79-20,205.99

Finding the Fourth Proportional to 36,121.46, 49,849.79 and 20,205.99

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Solution

The fourth proportional to 36,121.46, 49,849.79 and 20,205.99 is: 27,885.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,121.46 : 49,849.79 = 20,205.99 : x
  2. Step 2: Convert to fraction form
    36,121.46/49,849.79 = 20,205.99/x
  3. Step 3: Cross multiply
    36,121.46x = 49,849.79 × 20,205.99
  4. Step 4: Simplify right side
    36,121.46x = 1,007,264,257.21
  5. Step 5: Solve for x
    x = 1,007,264,257.21/36,121.46
  6. Step 6: Final answer
    x = 27,885.48

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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.