Home / 21,631.96-32,449.30-9,149.66

Finding the Fourth Proportional to 21,631.96, 32,449.30 and 9,149.66

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Solution

The fourth proportional to 21,631.96, 32,449.30 and 9,149.66 is: 13,725.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,631.96 : 32,449.30 = 9,149.66 : x
  2. Step 2: Convert to fraction form
    21,631.96/32,449.30 = 9,149.66/x
  3. Step 3: Cross multiply
    21,631.96x = 32,449.30 × 9,149.66
  4. Step 4: Simplify right side
    21,631.96x = 296,900,062.24
  5. Step 5: Solve for x
    x = 296,900,062.24/21,631.96
  6. Step 6: Final answer
    x = 13,725.07

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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.