Home / 20,435.65-28,198.06-11,481.44

Finding the Fourth Proportional to 20,435.65, 28,198.06 and 11,481.44

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Solution

The fourth proportional to 20,435.65, 28,198.06 and 11,481.44 is: 15,842.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,435.65 : 28,198.06 = 11,481.44 : x
  2. Step 2: Convert to fraction form
    20,435.65/28,198.06 = 11,481.44/x
  3. Step 3: Cross multiply
    20,435.65x = 28,198.06 × 11,481.44
  4. Step 4: Simplify right side
    20,435.65x = 323,754,164.31
  5. Step 5: Solve for x
    x = 323,754,164.31/20,435.65
  6. Step 6: Final answer
    x = 15,842.62

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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.