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Finding the Fourth Proportional to 19,019.88, 28,534.38 and 5,694

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Solution

The fourth proportional to 19,019.88, 28,534.38 and 5,694 is: 8,542.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,019.88 : 28,534.38 = 5,694 : x
  2. Step 2: Convert to fraction form
    19,019.88/28,534.38 = 5,694/x
  3. Step 3: Cross multiply
    19,019.88x = 28,534.38 × 5,694
  4. Step 4: Simplify right side
    19,019.88x = 162,474,759.72
  5. Step 5: Solve for x
    x = 162,474,759.72/19,019.88
  6. Step 6: Final answer
    x = 8,542.37

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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.