Home / 21,763.64-32,654.68-11,891.38

Finding the Fourth Proportional to 21,763.64, 32,654.68 and 11,891.38

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Solution

The fourth proportional to 21,763.64, 32,654.68 and 11,891.38 is: 17,842.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,763.64 : 32,654.68 = 11,891.38 : x
  2. Step 2: Convert to fraction form
    21,763.64/32,654.68 = 11,891.38/x
  3. Step 3: Cross multiply
    21,763.64x = 32,654.68 × 11,891.38
  4. Step 4: Simplify right side
    21,763.64x = 388,309,317.25
  5. Step 5: Solve for x
    x = 388,309,317.25/21,763.64
  6. Step 6: Final answer
    x = 17,842.12

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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.