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Finding the Third Proportional to 21,636 and 46,512

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Solution

The third proportional to 21,636 and 46,512 is: 99,989.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,636 : 46,512 = 46,512 : x
  2. Step 2: Convert to fraction form
    21,636/46,512 = 46,512/x
  3. Step 3: Cross multiply
    21,636x = 46,512 × 46,512
  4. Step 4: Simplify right side
    21,636x = 2,163,366,144
  5. Step 5: Solve for x
    x = 2,163,366,144/21,636
  6. Step 6: Final answer
    x = 99,989.19

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.