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Finding the Third Proportional to 21,804 and 26,772

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Solution

The third proportional to 21,804 and 26,772 is: 32,871.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,804 : 26,772 = 26,772 : x
  2. Step 2: Convert to fraction form
    21,804/26,772 = 26,772/x
  3. Step 3: Cross multiply
    21,804x = 26,772 × 26,772
  4. Step 4: Simplify right side
    21,804x = 716,739,984
  5. Step 5: Solve for x
    x = 716,739,984/21,804
  6. Step 6: Final answer
    x = 32,871.95

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Why These Related Problems?

These problems maintain the same ratio (1.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.