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Finding the Fourth Proportional to 22,164.99, 30,583.49 and 13,213.34

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Solution

The fourth proportional to 22,164.99, 30,583.49 and 13,213.34 is: 18,231.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,164.99 : 30,583.49 = 13,213.34 : x
  2. Step 2: Convert to fraction form
    22,164.99/30,583.49 = 13,213.34/x
  3. Step 3: Cross multiply
    22,164.99x = 30,583.49 × 13,213.34
  4. Step 4: Simplify right side
    22,164.99x = 404,109,931.87
  5. Step 5: Solve for x
    x = 404,109,931.87/22,164.99
  6. Step 6: Final answer
    x = 18,231.90

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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.