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Finding the Third Proportional to 14,740 and 20,718

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Solution

The third proportional to 14,740 and 20,718 is: 29,120.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,740 : 20,718 = 20,718 : x
  2. Step 2: Convert to fraction form
    14,740/20,718 = 20,718/x
  3. Step 3: Cross multiply
    14,740x = 20,718 × 20,718
  4. Step 4: Simplify right side
    14,740x = 429,235,524
  5. Step 5: Solve for x
    x = 429,235,524/14,740
  6. Step 6: Final answer
    x = 29,120.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.