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Finding the Fourth Proportional to 28,924.80, 43,387.20 and 17,097.60

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Solution

The fourth proportional to 28,924.80, 43,387.20 and 17,097.60 is: 25,646.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,924.80 : 43,387.20 = 17,097.60 : x
  2. Step 2: Convert to fraction form
    28,924.80/43,387.20 = 17,097.60/x
  3. Step 3: Cross multiply
    28,924.80x = 43,387.20 × 17,097.60
  4. Step 4: Simplify right side
    28,924.80x = 741,816,990.72
  5. Step 5: Solve for x
    x = 741,816,990.72/28,924.80
  6. Step 6: Final answer
    x = 25,646.40

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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.