Home / 21,629.06-32,447.96-9,149.12

Finding the Fourth Proportional to 21,629.06, 32,447.96 and 9,149.12

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Solution

The fourth proportional to 21,629.06, 32,447.96 and 9,149.12 is: 13,725.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,629.06 : 32,447.96 = 9,149.12 : x
  2. Step 2: Convert to fraction form
    21,629.06/32,447.96 = 9,149.12/x
  3. Step 3: Cross multiply
    21,629.06x = 32,447.96 × 9,149.12
  4. Step 4: Simplify right side
    21,629.06x = 296,870,234.05
  5. Step 5: Solve for x
    x = 296,870,234.05/21,629.06
  6. Step 6: Final answer
    x = 13,725.53

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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.