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Finding the Third Proportional to 18,697.50 and 40,330.13

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Solution

The third proportional to 18,697.50 and 40,330.13 is: 86,991.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,697.50 : 40,330.13 = 40,330.13 : x
  2. Step 2: Convert to fraction form
    18,697.50/40,330.13 = 40,330.13/x
  3. Step 3: Cross multiply
    18,697.50x = 40,330.13 × 40,330.13
  4. Step 4: Simplify right side
    18,697.50x = 1,626,518,982.52
  5. Step 5: Solve for x
    x = 1,626,518,982.52/18,697.50
  6. Step 6: Final answer
    x = 86,991.25

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.