Home / 21,561.68-32,275.62-11,676.44

Finding the Fourth Proportional to 21,561.68, 32,275.62 and 11,676.44

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Solution

The fourth proportional to 21,561.68, 32,275.62 and 11,676.44 is: 17,478.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,561.68 : 32,275.62 = 11,676.44 : x
  2. Step 2: Convert to fraction form
    21,561.68/32,275.62 = 11,676.44/x
  3. Step 3: Cross multiply
    21,561.68x = 32,275.62 × 11,676.44
  4. Step 4: Simplify right side
    21,561.68x = 376,864,179.01
  5. Step 5: Solve for x
    x = 376,864,179.01/21,561.68
  6. Step 6: Final answer
    x = 17,478.43

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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.