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Finding the Third Proportional to 18,178 and 28,097

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Solution

The third proportional to 18,178 and 28,097 is: 43,428.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,178 : 28,097 = 28,097 : x
  2. Step 2: Convert to fraction form
    18,178/28,097 = 28,097/x
  3. Step 3: Cross multiply
    18,178x = 28,097 × 28,097
  4. Step 4: Simplify right side
    18,178x = 789,441,409
  5. Step 5: Solve for x
    x = 789,441,409/18,178
  6. Step 6: Final answer
    x = 43,428.40

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.