Home / 21,489.68-32,234.37-11,691.23

Finding the Fourth Proportional to 21,489.68, 32,234.37 and 11,691.23

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Solution

The fourth proportional to 21,489.68, 32,234.37 and 11,691.23 is: 17,536.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,489.68 : 32,234.37 = 11,691.23 : x
  2. Step 2: Convert to fraction form
    21,489.68/32,234.37 = 11,691.23/x
  3. Step 3: Cross multiply
    21,489.68x = 32,234.37 × 11,691.23
  4. Step 4: Simplify right side
    21,489.68x = 376,859,542.64
  5. Step 5: Solve for x
    x = 376,859,542.64/21,489.68
  6. Step 6: Final answer
    x = 17,536.77

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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.