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Finding the Third Proportional to 21,456 and 44,528

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Solution

The third proportional to 21,456 and 44,528 is: 92,409.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,456 : 44,528 = 44,528 : x
  2. Step 2: Convert to fraction form
    21,456/44,528 = 44,528/x
  3. Step 3: Cross multiply
    21,456x = 44,528 × 44,528
  4. Step 4: Simplify right side
    21,456x = 1,982,742,784
  5. Step 5: Solve for x
    x = 1,982,742,784/21,456
  6. Step 6: Final answer
    x = 92,409.71

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.