Home / 20,936.27-28,891.49-11,504.84

Finding the Fourth Proportional to 20,936.27, 28,891.49 and 11,504.84

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Solution

The fourth proportional to 20,936.27, 28,891.49 and 11,504.84 is: 15,876.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,936.27 : 28,891.49 = 11,504.84 : x
  2. Step 2: Convert to fraction form
    20,936.27/28,891.49 = 11,504.84/x
  3. Step 3: Cross multiply
    20,936.27x = 28,891.49 × 11,504.84
  4. Step 4: Simplify right side
    20,936.27x = 332,391,767.83
  5. Step 5: Solve for x
    x = 332,391,767.83/20,936.27
  6. Step 6: Final answer
    x = 15,876.36

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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.