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Finding the Third Proportional to 20,604 and 23,520

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Solution

The third proportional to 20,604 and 23,520 is: 26,848.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,604 : 23,520 = 23,520 : x
  2. Step 2: Convert to fraction form
    20,604/23,520 = 23,520/x
  3. Step 3: Cross multiply
    20,604x = 23,520 × 23,520
  4. Step 4: Simplify right side
    20,604x = 553,190,400
  5. Step 5: Solve for x
    x = 553,190,400/20,604
  6. Step 6: Final answer
    x = 26,848.69

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Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.