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Finding the Third Proportional to 21,813 and 29,574

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Solution

The third proportional to 21,813 and 29,574 is: 40,096.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,813 : 29,574 = 29,574 : x
  2. Step 2: Convert to fraction form
    21,813/29,574 = 29,574/x
  3. Step 3: Cross multiply
    21,813x = 29,574 × 29,574
  4. Step 4: Simplify right side
    21,813x = 874,621,476
  5. Step 5: Solve for x
    x = 874,621,476/21,813
  6. Step 6: Final answer
    x = 40,096.34

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.