Home / 31,693.88-43,738.18-18,262.87

Finding the Fourth Proportional to 31,693.88, 43,738.18 and 18,262.87

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Solution

The fourth proportional to 31,693.88, 43,738.18 and 18,262.87 is: 25,203.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,693.88 : 43,738.18 = 18,262.87 : x
  2. Step 2: Convert to fraction form
    31,693.88/43,738.18 = 18,262.87/x
  3. Step 3: Cross multiply
    31,693.88x = 43,738.18 × 18,262.87
  4. Step 4: Simplify right side
    31,693.88x = 798,784,540.37
  5. Step 5: Solve for x
    x = 798,784,540.37/31,693.88
  6. Step 6: Final answer
    x = 25,203.11

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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.