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Finding the Fourth Proportional to 22,087.99, 30,480.87 and 12,655.94

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Solution

The fourth proportional to 22,087.99, 30,480.87 and 12,655.94 is: 17,464.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,087.99 : 30,480.87 = 12,655.94 : x
  2. Step 2: Convert to fraction form
    22,087.99/30,480.87 = 12,655.94/x
  3. Step 3: Cross multiply
    22,087.99x = 30,480.87 × 12,655.94
  4. Step 4: Simplify right side
    22,087.99x = 385,764,061.87
  5. Step 5: Solve for x
    x = 385,764,061.87/22,087.99
  6. Step 6: Final answer
    x = 17,464.88

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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.