Home / 30,218.20-41,721.42-23,131.96

Finding the Fourth Proportional to 30,218.20, 41,721.42 and 23,131.96

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Solution

The fourth proportional to 30,218.20, 41,721.42 and 23,131.96 is: 31,937.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,218.20 : 41,721.42 = 23,131.96 : x
  2. Step 2: Convert to fraction form
    30,218.20/41,721.42 = 23,131.96/x
  3. Step 3: Cross multiply
    30,218.20x = 41,721.42 × 23,131.96
  4. Step 4: Simplify right side
    30,218.20x = 965,098,218.58
  5. Step 5: Solve for x
    x = 965,098,218.58/30,218.20
  6. Step 6: Final answer
    x = 31,937.65

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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.