Home / 21,514.14-32,251.68-7,659.90

Finding the Fourth Proportional to 21,514.14, 32,251.68 and 7,659.90

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Solution

The fourth proportional to 21,514.14, 32,251.68 and 7,659.90 is: 11,482.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,514.14 : 32,251.68 = 7,659.90 : x
  2. Step 2: Convert to fraction form
    21,514.14/32,251.68 = 7,659.90/x
  3. Step 3: Cross multiply
    21,514.14x = 32,251.68 × 7,659.90
  4. Step 4: Simplify right side
    21,514.14x = 247,044,643.63
  5. Step 5: Solve for x
    x = 247,044,643.63/21,514.14
  6. Step 6: Final answer
    x = 11,482.90

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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.