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Finding the Fourth Proportional to 17,145.60, 25,718.40 and 14,553.60

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Solution

The fourth proportional to 17,145.60, 25,718.40 and 14,553.60 is: 21,830.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,145.60 : 25,718.40 = 14,553.60 : x
  2. Step 2: Convert to fraction form
    17,145.60/25,718.40 = 14,553.60/x
  3. Step 3: Cross multiply
    17,145.60x = 25,718.40 × 14,553.60
  4. Step 4: Simplify right side
    17,145.60x = 374,295,306.24
  5. Step 5: Solve for x
    x = 374,295,306.24/17,145.60
  6. Step 6: Final answer
    x = 21,830.40

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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.