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Finding the Fourth Proportional to 20,563.44, 28,377.63 and 11,132.00

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Solution

The fourth proportional to 20,563.44, 28,377.63 and 11,132.00 is: 15,362.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,563.44 : 28,377.63 = 11,132.00 : x
  2. Step 2: Convert to fraction form
    20,563.44/28,377.63 = 11,132.00/x
  3. Step 3: Cross multiply
    20,563.44x = 28,377.63 × 11,132.00
  4. Step 4: Simplify right side
    20,563.44x = 315,899,635.27
  5. Step 5: Solve for x
    x = 315,899,635.27/20,563.44
  6. Step 6: Final answer
    x = 15,362.20

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.