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Finding the Third Proportional to 10,020 and 14,739

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Solution

The third proportional to 10,020 and 14,739 is: 21,680.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,020 : 14,739 = 14,739 : x
  2. Step 2: Convert to fraction form
    10,020/14,739 = 14,739/x
  3. Step 3: Cross multiply
    10,020x = 14,739 × 14,739
  4. Step 4: Simplify right side
    10,020x = 217,238,121
  5. Step 5: Solve for x
    x = 217,238,121/10,020
  6. Step 6: Final answer
    x = 21,680.45

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.