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Finding the Third Proportional to 15,678 and 22,650

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Solution

The third proportional to 15,678 and 22,650 is: 32,722.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,678 : 22,650 = 22,650 : x
  2. Step 2: Convert to fraction form
    15,678/22,650 = 22,650/x
  3. Step 3: Cross multiply
    15,678x = 22,650 × 22,650
  4. Step 4: Simplify right side
    15,678x = 513,022,500
  5. Step 5: Solve for x
    x = 513,022,500/15,678
  6. Step 6: Final answer
    x = 32,722.45

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.