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Finding the Third Proportional to 13,618.50 and 30,153

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Solution

The third proportional to 13,618.50 and 30,153 is: 66,762.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,618.50 : 30,153 = 30,153 : x
  2. Step 2: Convert to fraction form
    13,618.50/30,153 = 30,153/x
  3. Step 3: Cross multiply
    13,618.50x = 30,153 × 30,153
  4. Step 4: Simplify right side
    13,618.50x = 909,203,409
  5. Step 5: Solve for x
    x = 909,203,409/13,618.50
  6. Step 6: Final answer
    x = 66,762.38

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.