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Finding the Fourth Proportional to 20,360.68, 30,539.10 and 6,505.96

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Solution

The fourth proportional to 20,360.68, 30,539.10 and 6,505.96 is: 9,758.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,360.68 : 30,539.10 = 6,505.96 : x
  2. Step 2: Convert to fraction form
    20,360.68/30,539.10 = 6,505.96/x
  3. Step 3: Cross multiply
    20,360.68x = 30,539.10 × 6,505.96
  4. Step 4: Simplify right side
    20,360.68x = 198,686,163.04
  5. Step 5: Solve for x
    x = 198,686,163.04/20,360.68
  6. Step 6: Final answer
    x = 9,758.33

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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.