Home / 31,930.89-43,745.53-30,733.74

Finding the Fourth Proportional to 31,930.89, 43,745.53 and 30,733.74

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Solution

The fourth proportional to 31,930.89, 43,745.53 and 30,733.74 is: 42,105.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,930.89 : 43,745.53 = 30,733.74 : x
  2. Step 2: Convert to fraction form
    31,930.89/43,745.53 = 30,733.74/x
  3. Step 3: Cross multiply
    31,930.89x = 43,745.53 × 30,733.74
  4. Step 4: Simplify right side
    31,930.89x = 1,344,463,668.35
  5. Step 5: Solve for x
    x = 1,344,463,668.35/31,930.89
  6. Step 6: Final answer
    x = 42,105.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.