Home / 21,949.12-32,942.84-19,455.96

Finding the Fourth Proportional to 21,949.12, 32,942.84 and 19,455.96

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Solution

The fourth proportional to 21,949.12, 32,942.84 and 19,455.96 is: 29,200.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,949.12 : 32,942.84 = 19,455.96 : x
  2. Step 2: Convert to fraction form
    21,949.12/32,942.84 = 19,455.96/x
  3. Step 3: Cross multiply
    21,949.12x = 32,942.84 × 19,455.96
  4. Step 4: Simplify right side
    21,949.12x = 640,934,577.33
  5. Step 5: Solve for x
    x = 640,934,577.33/21,949.12
  6. Step 6: Final answer
    x = 29,200.92

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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.