Home / 20,121.46-27,767.41-11,169.04

Finding the Fourth Proportional to 20,121.46, 27,767.41 and 11,169.04

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Solution

The fourth proportional to 20,121.46, 27,767.41 and 11,169.04 is: 15,413.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,121.46 : 27,767.41 = 11,169.04 : x
  2. Step 2: Convert to fraction form
    20,121.46/27,767.41 = 11,169.04/x
  3. Step 3: Cross multiply
    20,121.46x = 27,767.41 × 11,169.04
  4. Step 4: Simplify right side
    20,121.46x = 310,135,312.99
  5. Step 5: Solve for x
    x = 310,135,312.99/20,121.46
  6. Step 6: Final answer
    x = 15,413.16

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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.