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Finding the Third Proportional to 18,039.38 and 28,338.19

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Solution

The third proportional to 18,039.38 and 28,338.19 is: 44,516.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,039.38 : 28,338.19 = 28,338.19 : x
  2. Step 2: Convert to fraction form
    18,039.38/28,338.19 = 28,338.19/x
  3. Step 3: Cross multiply
    18,039.38x = 28,338.19 × 28,338.19
  4. Step 4: Simplify right side
    18,039.38x = 803,052,870.79
  5. Step 5: Solve for x
    x = 803,052,870.79/18,039.38
  6. Step 6: Final answer
    x = 44,516.67

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.