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Finding the Third Proportional to 21,362 and 29,959

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Solution

The third proportional to 21,362 and 29,959 is: 42,015.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,362 : 29,959 = 29,959 : x
  2. Step 2: Convert to fraction form
    21,362/29,959 = 29,959/x
  3. Step 3: Cross multiply
    21,362x = 29,959 × 29,959
  4. Step 4: Simplify right side
    21,362x = 897,541,681
  5. Step 5: Solve for x
    x = 897,541,681/21,362
  6. Step 6: Final answer
    x = 42,015.81

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.