Home / 21,861.06-32,789.97-8,716.38

Finding the Fourth Proportional to 21,861.06, 32,789.97 and 8,716.38

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Solution

The fourth proportional to 21,861.06, 32,789.97 and 8,716.38 is: 13,073.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,861.06 : 32,789.97 = 8,716.38 : x
  2. Step 2: Convert to fraction form
    21,861.06/32,789.97 = 8,716.38/x
  3. Step 3: Cross multiply
    21,861.06x = 32,789.97 × 8,716.38
  4. Step 4: Simplify right side
    21,861.06x = 285,809,838.71
  5. Step 5: Solve for x
    x = 285,809,838.71/21,861.06
  6. Step 6: Final answer
    x = 13,073.92

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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.