Home / 20,433.52-28,198.29-11,481.02

Finding the Fourth Proportional to 20,433.52, 28,198.29 and 11,481.02

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Solution

The fourth proportional to 20,433.52, 28,198.29 and 11,481.02 is: 15,843.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,433.52 : 28,198.29 = 11,481.02 : x
  2. Step 2: Convert to fraction form
    20,433.52/28,198.29 = 11,481.02/x
  3. Step 3: Cross multiply
    20,433.52x = 28,198.29 × 11,481.02
  4. Step 4: Simplify right side
    20,433.52x = 323,744,933.06
  5. Step 5: Solve for x
    x = 323,744,933.06/20,433.52
  6. Step 6: Final answer
    x = 15,843.82

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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.