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Finding the Third Proportional to 13,639 and 28,655

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Solution

The third proportional to 13,639 and 28,655 is: 60,203.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,639 : 28,655 = 28,655 : x
  2. Step 2: Convert to fraction form
    13,639/28,655 = 28,655/x
  3. Step 3: Cross multiply
    13,639x = 28,655 × 28,655
  4. Step 4: Simplify right side
    13,639x = 821,109,025
  5. Step 5: Solve for x
    x = 821,109,025/13,639
  6. Step 6: Final answer
    x = 60,203.02

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These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.