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Finding the Fourth Proportional to 17,074.80, 25,612.20 and 5,389.20

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Solution

The fourth proportional to 17,074.80, 25,612.20 and 5,389.20 is: 8,083.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,074.80 : 25,612.20 = 5,389.20 : x
  2. Step 2: Convert to fraction form
    17,074.80/25,612.20 = 5,389.20/x
  3. Step 3: Cross multiply
    17,074.80x = 25,612.20 × 5,389.20
  4. Step 4: Simplify right side
    17,074.80x = 138,029,268.24
  5. Step 5: Solve for x
    x = 138,029,268.24/17,074.80
  6. Step 6: Final answer
    x = 8,083.80

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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.