Home / 31,198.70-43,054.20-17,771.20

Finding the Fourth Proportional to 31,198.70, 43,054.20 and 17,771.20

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Solution

The fourth proportional to 31,198.70, 43,054.20 and 17,771.20 is: 24,524.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,198.70 : 43,054.20 = 17,771.20 : x
  2. Step 2: Convert to fraction form
    31,198.70/43,054.20 = 17,771.20/x
  3. Step 3: Cross multiply
    31,198.70x = 43,054.20 × 17,771.20
  4. Step 4: Simplify right side
    31,198.70x = 765,124,691.40
  5. Step 5: Solve for x
    x = 765,124,691.40/31,198.70
  6. Step 6: Final answer
    x = 24,524.25

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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.