Home / 20,251.67-27,947.40-11,299.68

Finding the Fourth Proportional to 20,251.67, 27,947.40 and 11,299.68

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Solution

The fourth proportional to 20,251.67, 27,947.40 and 11,299.68 is: 15,593.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,251.67 : 27,947.40 = 11,299.68 : x
  2. Step 2: Convert to fraction form
    20,251.67/27,947.40 = 11,299.68/x
  3. Step 3: Cross multiply
    20,251.67x = 27,947.40 × 11,299.68
  4. Step 4: Simplify right side
    20,251.67x = 315,796,651.20
  5. Step 5: Solve for x
    x = 315,796,651.20/20,251.67
  6. Step 6: Final answer
    x = 15,593.61

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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.