Home / 31,446.20-43,394.66-18,015.60

Finding the Fourth Proportional to 31,446.20, 43,394.66 and 18,015.60

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Solution

The fourth proportional to 31,446.20, 43,394.66 and 18,015.60 is: 24,860.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,446.20 : 43,394.66 = 18,015.60 : x
  2. Step 2: Convert to fraction form
    31,446.20/43,394.66 = 18,015.60/x
  3. Step 3: Cross multiply
    31,446.20x = 43,394.66 × 18,015.60
  4. Step 4: Simplify right side
    31,446.20x = 781,780,836.70
  5. Step 5: Solve for x
    x = 781,780,836.70/31,446.20
  6. Step 6: Final answer
    x = 24,860.90

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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.