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Finding the Third Proportional to 19,040 and 39,804

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Solution

The third proportional to 19,040 and 39,804 is: 83,212.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,040 : 39,804 = 39,804 : x
  2. Step 2: Convert to fraction form
    19,040/39,804 = 39,804/x
  3. Step 3: Cross multiply
    19,040x = 39,804 × 39,804
  4. Step 4: Simplify right side
    19,040x = 1,584,358,416
  5. Step 5: Solve for x
    x = 1,584,358,416/19,040
  6. Step 6: Final answer
    x = 83,212.10

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.