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Finding the Fourth Proportional to 21,993.84, 33,020.73 and 19,027.62

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Solution

The fourth proportional to 21,993.84, 33,020.73 and 19,027.62 is: 28,567.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,993.84 : 33,020.73 = 19,027.62 : x
  2. Step 2: Convert to fraction form
    21,993.84/33,020.73 = 19,027.62/x
  3. Step 3: Cross multiply
    21,993.84x = 33,020.73 × 19,027.62
  4. Step 4: Simplify right side
    21,993.84x = 628,305,902.56
  5. Step 5: Solve for x
    x = 628,305,902.56/21,993.84
  6. Step 6: Final answer
    x = 28,567.36

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1.5x scale

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.