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Finding the Third Proportional to 14,620 and 21,618

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Solution

The third proportional to 14,620 and 21,618 is: 31,965.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,620 : 21,618 = 21,618 : x
  2. Step 2: Convert to fraction form
    14,620/21,618 = 21,618/x
  3. Step 3: Cross multiply
    14,620x = 21,618 × 21,618
  4. Step 4: Simplify right side
    14,620x = 467,337,924
  5. Step 5: Solve for x
    x = 467,337,924/14,620
  6. Step 6: Final answer
    x = 31,965.66

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.