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Finding the Fourth Proportional to 18,364.60, 27,530.70 and 16,396.30

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Solution

The fourth proportional to 18,364.60, 27,530.70 and 16,396.30 is: 24,579.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,364.60 : 27,530.70 = 16,396.30 : x
  2. Step 2: Convert to fraction form
    18,364.60/27,530.70 = 16,396.30/x
  3. Step 3: Cross multiply
    18,364.60x = 27,530.70 × 16,396.30
  4. Step 4: Simplify right side
    18,364.60x = 451,401,616.41
  5. Step 5: Solve for x
    x = 451,401,616.41/18,364.60
  6. Step 6: Final answer
    x = 24,579.99

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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.