Home / 21,299.92-31,955.64-6,508.44

Finding the Fourth Proportional to 21,299.92, 31,955.64 and 6,508.44

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Solution

The fourth proportional to 21,299.92, 31,955.64 and 6,508.44 is: 9,764.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,299.92 : 31,955.64 = 6,508.44 : x
  2. Step 2: Convert to fraction form
    21,299.92/31,955.64 = 6,508.44/x
  3. Step 3: Cross multiply
    21,299.92x = 31,955.64 × 6,508.44
  4. Step 4: Simplify right side
    21,299.92x = 207,981,365.60
  5. Step 5: Solve for x
    x = 207,981,365.60/21,299.92
  6. Step 6: Final answer
    x = 9,764.42

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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.