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Finding the Third Proportional to 14,778 and 20,603

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Solution

The third proportional to 14,778 and 20,603 is: 28,724.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,778 : 20,603 = 20,603 : x
  2. Step 2: Convert to fraction form
    14,778/20,603 = 20,603/x
  3. Step 3: Cross multiply
    14,778x = 20,603 × 20,603
  4. Step 4: Simplify right side
    14,778x = 424,483,609
  5. Step 5: Solve for x
    x = 424,483,609/14,778
  6. Step 6: Final answer
    x = 28,724.02

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.