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Finding the Third Proportional to 9,378.28 and 20,499.19

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Solution

The third proportional to 9,378.28 and 20,499.19 is: 44,807.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,378.28 : 20,499.19 = 20,499.19 : x
  2. Step 2: Convert to fraction form
    9,378.28/20,499.19 = 20,499.19/x
  3. Step 3: Cross multiply
    9,378.28x = 20,499.19 × 20,499.19
  4. Step 4: Simplify right side
    9,378.28x = 420,216,688.16
  5. Step 5: Solve for x
    x = 420,216,688.16/9,378.28
  6. Step 6: Final answer
    x = 44,807.43

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.