Home / 31,676.73-43,771.71-30,139.53

Finding the Fourth Proportional to 31,676.73, 43,771.71 and 30,139.53

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Solution

The fourth proportional to 31,676.73, 43,771.71 and 30,139.53 is: 41,647.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,676.73 : 43,771.71 = 30,139.53 : x
  2. Step 2: Convert to fraction form
    31,676.73/43,771.71 = 30,139.53/x
  3. Step 3: Cross multiply
    31,676.73x = 43,771.71 × 30,139.53
  4. Step 4: Simplify right side
    31,676.73x = 1,319,258,766.70
  5. Step 5: Solve for x
    x = 1,319,258,766.70/31,676.73
  6. Step 6: Final answer
    x = 41,647.57

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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.