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Finding the Third Proportional to 30,586 and 40,308

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Solution

The third proportional to 30,586 and 40,308 is: 53,120.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,586 : 40,308 = 40,308 : x
  2. Step 2: Convert to fraction form
    30,586/40,308 = 40,308/x
  3. Step 3: Cross multiply
    30,586x = 40,308 × 40,308
  4. Step 4: Simplify right side
    30,586x = 1,624,734,864
  5. Step 5: Solve for x
    x = 1,624,734,864/30,586
  6. Step 6: Final answer
    x = 53,120.21

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.