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Finding the Third Proportional to 9,636 and 20,909.75

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Solution

The third proportional to 9,636 and 20,909.75 is: 45,373.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,636 : 20,909.75 = 20,909.75 : x
  2. Step 2: Convert to fraction form
    9,636/20,909.75 = 20,909.75/x
  3. Step 3: Cross multiply
    9,636x = 20,909.75 × 20,909.75
  4. Step 4: Simplify right side
    9,636x = 437,217,645.06
  5. Step 5: Solve for x
    x = 437,217,645.06/9,636
  6. Step 6: Final answer
    x = 45,373.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.