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Finding the Third Proportional to 20,998 and 32,220

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Solution

The third proportional to 20,998 and 32,220 is: 49,439.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,998 : 32,220 = 32,220 : x
  2. Step 2: Convert to fraction form
    20,998/32,220 = 32,220/x
  3. Step 3: Cross multiply
    20,998x = 32,220 × 32,220
  4. Step 4: Simplify right side
    20,998x = 1,038,128,400
  5. Step 5: Solve for x
    x = 1,038,128,400/20,998
  6. Step 6: Final answer
    x = 49,439.39

Related Problems

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.