Home / 21,835.26-32,764.68-8,687.79

Finding the Fourth Proportional to 21,835.26, 32,764.68 and 8,687.79

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Solution

The fourth proportional to 21,835.26, 32,764.68 and 8,687.79 is: 13,036.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,835.26 : 32,764.68 = 8,687.79 : x
  2. Step 2: Convert to fraction form
    21,835.26/32,764.68 = 8,687.79/x
  3. Step 3: Cross multiply
    21,835.26x = 32,764.68 × 8,687.79
  4. Step 4: Simplify right side
    21,835.26x = 284,652,659.26
  5. Step 5: Solve for x
    x = 284,652,659.26/21,835.26
  6. Step 6: Final answer
    x = 13,036.38

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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.