Home / 31,330.70-43,236.48-18,755.44

Finding the Fourth Proportional to 31,330.70, 43,236.48 and 18,755.44

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Solution

The fourth proportional to 31,330.70, 43,236.48 and 18,755.44 is: 25,882.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,330.70 : 43,236.48 = 18,755.44 : x
  2. Step 2: Convert to fraction form
    31,330.70/43,236.48 = 18,755.44/x
  3. Step 3: Cross multiply
    31,330.70x = 43,236.48 × 18,755.44
  4. Step 4: Simplify right side
    31,330.70x = 810,919,206.45
  5. Step 5: Solve for x
    x = 810,919,206.45/31,330.70
  6. Step 6: Final answer
    x = 25,882.58

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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.