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Finding the Third Proportional to 18,220 and 25,808

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Solution

The third proportional to 18,220 and 25,808 is: 36,556.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,220 : 25,808 = 25,808 : x
  2. Step 2: Convert to fraction form
    18,220/25,808 = 25,808/x
  3. Step 3: Cross multiply
    18,220x = 25,808 × 25,808
  4. Step 4: Simplify right side
    18,220x = 666,052,864
  5. Step 5: Solve for x
    x = 666,052,864/18,220
  6. Step 6: Final answer
    x = 36,556.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.