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Finding the Third Proportional to 18,559.13 and 30,390.19

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Solution

The third proportional to 18,559.13 and 30,390.19 is: 49,763.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,559.13 : 30,390.19 = 30,390.19 : x
  2. Step 2: Convert to fraction form
    18,559.13/30,390.19 = 30,390.19/x
  3. Step 3: Cross multiply
    18,559.13x = 30,390.19 × 30,390.19
  4. Step 4: Simplify right side
    18,559.13x = 923,563,496.29
  5. Step 5: Solve for x
    x = 923,563,496.29/18,559.13
  6. Step 6: Final answer
    x = 49,763.31

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Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.