Home / 20,087.97-27,718.44-11,135.43

Finding the Fourth Proportional to 20,087.97, 27,718.44 and 11,135.43

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Solution

The fourth proportional to 20,087.97, 27,718.44 and 11,135.43 is: 15,365.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,087.97 : 27,718.44 = 11,135.43 : x
  2. Step 2: Convert to fraction form
    20,087.97/27,718.44 = 11,135.43/x
  3. Step 3: Cross multiply
    20,087.97x = 27,718.44 × 11,135.43
  4. Step 4: Simplify right side
    20,087.97x = 308,656,748.33
  5. Step 5: Solve for x
    x = 308,656,748.33/20,087.97
  6. Step 6: Final answer
    x = 15,365.25

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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.