Home / 21,819.78-32,729.67-6,237.39

Finding the Fourth Proportional to 21,819.78, 32,729.67 and 6,237.39

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Solution

The fourth proportional to 21,819.78, 32,729.67 and 6,237.39 is: 9,356.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,819.78 : 32,729.67 = 6,237.39 : x
  2. Step 2: Convert to fraction form
    21,819.78/32,729.67 = 6,237.39/x
  3. Step 3: Cross multiply
    21,819.78x = 32,729.67 × 6,237.39
  4. Step 4: Simplify right side
    21,819.78x = 204,147,716.36
  5. Step 5: Solve for x
    x = 204,147,716.36/21,819.78
  6. Step 6: Final answer
    x = 9,356.09

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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.