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Finding the Third Proportional to 13,803 and 21,942

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Solution

The third proportional to 13,803 and 21,942 is: 34,880.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,803 : 21,942 = 21,942 : x
  2. Step 2: Convert to fraction form
    13,803/21,942 = 21,942/x
  3. Step 3: Cross multiply
    13,803x = 21,942 × 21,942
  4. Step 4: Simplify right side
    13,803x = 481,451,364
  5. Step 5: Solve for x
    x = 481,451,364/13,803
  6. Step 6: Final answer
    x = 34,880.20

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.