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Finding the Third Proportional to 18,369.28 and 28,313.30

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Solution

The third proportional to 18,369.28 and 28,313.30 is: 43,640.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,369.28 : 28,313.30 = 28,313.30 : x
  2. Step 2: Convert to fraction form
    18,369.28/28,313.30 = 28,313.30/x
  3. Step 3: Cross multiply
    18,369.28x = 28,313.30 × 28,313.30
  4. Step 4: Simplify right side
    18,369.28x = 801,642,779.93
  5. Step 5: Solve for x
    x = 801,642,779.93/18,369.28
  6. Step 6: Final answer
    x = 43,640.40

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.