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Finding the Third Proportional to 8,740 and 20,623

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Solution

The third proportional to 8,740 and 20,623 is: 48,662.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,740 : 20,623 = 20,623 : x
  2. Step 2: Convert to fraction form
    8,740/20,623 = 20,623/x
  3. Step 3: Cross multiply
    8,740x = 20,623 × 20,623
  4. Step 4: Simplify right side
    8,740x = 425,308,129
  5. Step 5: Solve for x
    x = 425,308,129/8,740
  6. Step 6: Final answer
    x = 48,662.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.