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Finding the Fourth Proportional to 18,882.73, 28,322.25 and 5,735.21

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Solution

The fourth proportional to 18,882.73, 28,322.25 and 5,735.21 is: 8,602.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,882.73 : 28,322.25 = 5,735.21 : x
  2. Step 2: Convert to fraction form
    18,882.73/28,322.25 = 5,735.21/x
  3. Step 3: Cross multiply
    18,882.73x = 28,322.25 × 5,735.21
  4. Step 4: Simplify right side
    18,882.73x = 162,434,051.42
  5. Step 5: Solve for x
    x = 162,434,051.42/18,882.73
  6. Step 6: Final answer
    x = 8,602.25

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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.