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Finding the Fourth Proportional to 19,080.56, 28,621.65 and 5,229.56

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Solution

The fourth proportional to 19,080.56, 28,621.65 and 5,229.56 is: 7,844.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,080.56 : 28,621.65 = 5,229.56 : x
  2. Step 2: Convert to fraction form
    19,080.56/28,621.65 = 5,229.56/x
  3. Step 3: Cross multiply
    19,080.56x = 28,621.65 × 5,229.56
  4. Step 4: Simplify right side
    19,080.56x = 149,678,727.14
  5. Step 5: Solve for x
    x = 149,678,727.14/19,080.56
  6. Step 6: Final answer
    x = 7,844.57

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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.