Home / 21,949.62-32,921.09-7,158.52

Finding the Fourth Proportional to 21,949.62, 32,921.09 and 7,158.52

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Solution

The fourth proportional to 21,949.62, 32,921.09 and 7,158.52 is: 10,736.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,949.62 : 32,921.09 = 7,158.52 : x
  2. Step 2: Convert to fraction form
    21,949.62/32,921.09 = 7,158.52/x
  3. Step 3: Cross multiply
    21,949.62x = 32,921.09 × 7,158.52
  4. Step 4: Simplify right side
    21,949.62x = 235,666,148.34
  5. Step 5: Solve for x
    x = 235,666,148.34/21,949.62
  6. Step 6: Final answer
    x = 10,736.68

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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.