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Finding the Third Proportional to 20,414 and 30,621

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Solution

The third proportional to 20,414 and 30,621 is: 45,931.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,414 : 30,621 = 30,621 : x
  2. Step 2: Convert to fraction form
    20,414/30,621 = 30,621/x
  3. Step 3: Cross multiply
    20,414x = 30,621 × 30,621
  4. Step 4: Simplify right side
    20,414x = 937,645,641
  5. Step 5: Solve for x
    x = 937,645,641/20,414
  6. Step 6: Final answer
    x = 45,931.50

Related Problems

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Half scale
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Double scale
Find third proportional to 20,416 and 30,624
Similar ratio
Find third proportional to 30,621 and 45,931.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.