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Finding the Fourth Proportional to 17,208.40, 25,812.60 and 5,522.80

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Solution

The fourth proportional to 17,208.40, 25,812.60 and 5,522.80 is: 8,284.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,208.40 : 25,812.60 = 5,522.80 : x
  2. Step 2: Convert to fraction form
    17,208.40/25,812.60 = 5,522.80/x
  3. Step 3: Cross multiply
    17,208.40x = 25,812.60 × 5,522.80
  4. Step 4: Simplify right side
    17,208.40x = 142,557,827.28
  5. Step 5: Solve for x
    x = 142,557,827.28/17,208.40
  6. Step 6: Final answer
    x = 8,284.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.