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Finding the Third Proportional to 20,148 and 35,880

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Solution

The third proportional to 20,148 and 35,880 is: 63,895.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148 : 35,880 = 35,880 : x
  2. Step 2: Convert to fraction form
    20,148/35,880 = 35,880/x
  3. Step 3: Cross multiply
    20,148x = 35,880 × 35,880
  4. Step 4: Simplify right side
    20,148x = 1,287,374,400
  5. Step 5: Solve for x
    x = 1,287,374,400/20,148
  6. Step 6: Final answer
    x = 63,895.89

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.