Home / 20,122.02-27,768.02-11,169.09

Finding the Fourth Proportional to 20,122.02, 27,768.02 and 11,169.09

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Solution

The fourth proportional to 20,122.02, 27,768.02 and 11,169.09 is: 15,413.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,122.02 : 27,768.02 = 11,169.09 : x
  2. Step 2: Convert to fraction form
    20,122.02/27,768.02 = 11,169.09/x
  3. Step 3: Cross multiply
    20,122.02x = 27,768.02 × 11,169.09
  4. Step 4: Simplify right side
    20,122.02x = 310,143,458.66
  5. Step 5: Solve for x
    x = 310,143,458.66/20,122.02
  6. Step 6: Final answer
    x = 15,413.14

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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.