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Finding the Fourth Proportional to 30,289.29, 41,797.11 and 18,958.29

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Solution

The fourth proportional to 30,289.29, 41,797.11 and 18,958.29 is: 26,161.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,289.29 : 41,797.11 = 18,958.29 : x
  2. Step 2: Convert to fraction form
    30,289.29/41,797.11 = 18,958.29/x
  3. Step 3: Cross multiply
    30,289.29x = 41,797.11 × 18,958.29
  4. Step 4: Simplify right side
    30,289.29x = 792,401,732.54
  5. Step 5: Solve for x
    x = 792,401,732.54/30,289.29
  6. Step 6: Final answer
    x = 26,161.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.