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Finding the Third Proportional to 18,009.38 and 26,430.38

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Solution

The third proportional to 18,009.38 and 26,430.38 is: 38,788.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,009.38 : 26,430.38 = 26,430.38 : x
  2. Step 2: Convert to fraction form
    18,009.38/26,430.38 = 26,430.38/x
  3. Step 3: Cross multiply
    18,009.38x = 26,430.38 × 26,430.38
  4. Step 4: Simplify right side
    18,009.38x = 698,564,722.64
  5. Step 5: Solve for x
    x = 698,564,722.64/18,009.38
  6. Step 6: Final answer
    x = 38,788.95

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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.