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Finding the Fourth Proportional to 22,838.40, 34,190.40 and 17,020.80

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Solution

The fourth proportional to 22,838.40, 34,190.40 and 17,020.80 is: 25,481.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,838.40 : 34,190.40 = 17,020.80 : x
  2. Step 2: Convert to fraction form
    22,838.40/34,190.40 = 17,020.80/x
  3. Step 3: Cross multiply
    22,838.40x = 34,190.40 × 17,020.80
  4. Step 4: Simplify right side
    22,838.40x = 581,947,960.32
  5. Step 5: Solve for x
    x = 581,947,960.32/22,838.40
  6. Step 6: Final answer
    x = 25,481.12

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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.