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Finding the Third Proportional to 30,245 and 39,535

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Solution

The third proportional to 30,245 and 39,535 is: 51,678.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,245 : 39,535 = 39,535 : x
  2. Step 2: Convert to fraction form
    30,245/39,535 = 39,535/x
  3. Step 3: Cross multiply
    30,245x = 39,535 × 39,535
  4. Step 4: Simplify right side
    30,245x = 1,563,016,225
  5. Step 5: Solve for x
    x = 1,563,016,225/30,245
  6. Step 6: Final answer
    x = 51,678.50

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.