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Finding the Third Proportional to 21,228 and 33,624

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Solution

The third proportional to 21,228 and 33,624 is: 53,258.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,228 : 33,624 = 33,624 : x
  2. Step 2: Convert to fraction form
    21,228/33,624 = 33,624/x
  3. Step 3: Cross multiply
    21,228x = 33,624 × 33,624
  4. Step 4: Simplify right side
    21,228x = 1,130,573,376
  5. Step 5: Solve for x
    x = 1,130,573,376/21,228
  6. Step 6: Final answer
    x = 53,258.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.