Home / 20,028.99-27,640.87-11,076.49

Finding the Fourth Proportional to 20,028.99, 27,640.87 and 11,076.49

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Solution

The fourth proportional to 20,028.99, 27,640.87 and 11,076.49 is: 15,286.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,028.99 : 27,640.87 = 11,076.49 : x
  2. Step 2: Convert to fraction form
    20,028.99/27,640.87 = 11,076.49/x
  3. Step 3: Cross multiply
    20,028.99x = 27,640.87 × 11,076.49
  4. Step 4: Simplify right side
    20,028.99x = 306,163,917.46
  5. Step 5: Solve for x
    x = 306,163,917.46/20,028.99
  6. Step 6: Final answer
    x = 15,286.04

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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.