Home / 20,888.06-28,826.42-11,936.25

Finding the Fourth Proportional to 20,888.06, 28,826.42 and 11,936.25

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Solution

The fourth proportional to 20,888.06, 28,826.42 and 11,936.25 is: 16,472.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,888.06 : 28,826.42 = 11,936.25 : x
  2. Step 2: Convert to fraction form
    20,888.06/28,826.42 = 11,936.25/x
  3. Step 3: Cross multiply
    20,888.06x = 28,826.42 × 11,936.25
  4. Step 4: Simplify right side
    20,888.06x = 344,079,296.04
  5. Step 5: Solve for x
    x = 344,079,296.04/20,888.06
  6. Step 6: Final answer
    x = 16,472.54

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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.