Home / 20,250.36-27,947.97-11,866.86

Finding the Fourth Proportional to 20,250.36, 27,947.97 and 11,866.86

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Solution

The fourth proportional to 20,250.36, 27,947.97 and 11,866.86 is: 16,377.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,250.36 : 27,947.97 = 11,866.86 : x
  2. Step 2: Convert to fraction form
    20,250.36/27,947.97 = 11,866.86/x
  3. Step 3: Cross multiply
    20,250.36x = 27,947.97 × 11,866.86
  4. Step 4: Simplify right side
    20,250.36x = 331,654,647.27
  5. Step 5: Solve for x
    x = 331,654,647.27/20,250.36
  6. Step 6: Final answer
    x = 16,377.72

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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.