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Finding the Third Proportional to 20,816 and 45,304

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Solution

The third proportional to 20,816 and 45,304 is: 98,599.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,816 : 45,304 = 45,304 : x
  2. Step 2: Convert to fraction form
    20,816/45,304 = 45,304/x
  3. Step 3: Cross multiply
    20,816x = 45,304 × 45,304
  4. Step 4: Simplify right side
    20,816x = 2,052,452,416
  5. Step 5: Solve for x
    x = 2,052,452,416/20,816
  6. Step 6: Final answer
    x = 98,599.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.