Home / 21,891.29-32,844.68-10,805.75

Finding the Fourth Proportional to 21,891.29, 32,844.68 and 10,805.75

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Solution

The fourth proportional to 21,891.29, 32,844.68 and 10,805.75 is: 16,212.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,891.29 : 32,844.68 = 10,805.75 : x
  2. Step 2: Convert to fraction form
    21,891.29/32,844.68 = 10,805.75/x
  3. Step 3: Cross multiply
    21,891.29x = 32,844.68 × 10,805.75
  4. Step 4: Simplify right side
    21,891.29x = 354,911,182.66
  5. Step 5: Solve for x
    x = 354,911,182.66/21,891.29
  6. Step 6: Final answer
    x = 16,212.44

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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.