Home / 30,481.55-42,078.92-22,930.75

Finding the Fourth Proportional to 30,481.55, 42,078.92 and 22,930.75

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Solution

The fourth proportional to 30,481.55, 42,078.92 and 22,930.75 is: 31,655.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,481.55 : 42,078.92 = 22,930.75 : x
  2. Step 2: Convert to fraction form
    30,481.55/42,078.92 = 22,930.75/x
  3. Step 3: Cross multiply
    30,481.55x = 42,078.92 × 22,930.75
  4. Step 4: Simplify right side
    30,481.55x = 964,901,315.57
  5. Step 5: Solve for x
    x = 964,901,315.57/30,481.55
  6. Step 6: Final answer
    x = 31,655.26

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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.