Home / 30,288-41,800-17,042.56

Finding the Fourth Proportional to 30,288, 41,800 and 17,042.56

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Solution

The fourth proportional to 30,288, 41,800 and 17,042.56 is: 23,520.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,288 : 41,800 = 17,042.56 : x
  2. Step 2: Convert to fraction form
    30,288/41,800 = 17,042.56/x
  3. Step 3: Cross multiply
    30,288x = 41,800 × 17,042.56
  4. Step 4: Simplify right side
    30,288x = 712,379,008
  5. Step 5: Solve for x
    x = 712,379,008/30,288
  6. Step 6: Final answer
    x = 23,520.17

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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.