Home / 21,928.28-32,850.96-10,821.96

Finding the Fourth Proportional to 21,928.28, 32,850.96 and 10,821.96

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Solution

The fourth proportional to 21,928.28, 32,850.96 and 10,821.96 is: 16,212.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,928.28 : 32,850.96 = 10,821.96 : x
  2. Step 2: Convert to fraction form
    21,928.28/32,850.96 = 10,821.96/x
  3. Step 3: Cross multiply
    21,928.28x = 32,850.96 × 10,821.96
  4. Step 4: Simplify right side
    21,928.28x = 355,511,775.08
  5. Step 5: Solve for x
    x = 355,511,775.08/21,928.28
  6. Step 6: Final answer
    x = 16,212.48

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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.