Home / 21,481.56-32,235.09-11,620.62

Finding the Fourth Proportional to 21,481.56, 32,235.09 and 11,620.62

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Solution

The fourth proportional to 21,481.56, 32,235.09 and 11,620.62 is: 17,437.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,481.56 : 32,235.09 = 11,620.62 : x
  2. Step 2: Convert to fraction form
    21,481.56/32,235.09 = 11,620.62/x
  3. Step 3: Cross multiply
    21,481.56x = 32,235.09 × 11,620.62
  4. Step 4: Simplify right side
    21,481.56x = 374,591,731.56
  5. Step 5: Solve for x
    x = 374,591,731.56/21,481.56
  6. Step 6: Final answer
    x = 17,437.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.