Home / 20,122.32-27,767.49-11,169.84

Finding the Fourth Proportional to 20,122.32, 27,767.49 and 11,169.84

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Solution

The fourth proportional to 20,122.32, 27,767.49 and 11,169.84 is: 15,413.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,122.32 : 27,767.49 = 11,169.84 : x
  2. Step 2: Convert to fraction form
    20,122.32/27,767.49 = 11,169.84/x
  3. Step 3: Cross multiply
    20,122.32x = 27,767.49 × 11,169.84
  4. Step 4: Simplify right side
    20,122.32x = 310,158,420.50
  5. Step 5: Solve for x
    x = 310,158,420.50/20,122.32
  6. Step 6: Final answer
    x = 15,413.65

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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.