Home / 31,518.20-43,435.25-22,550.15

Finding the Fourth Proportional to 31,518.20, 43,435.25 and 22,550.15

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Solution

The fourth proportional to 31,518.20, 43,435.25 and 22,550.15 is: 31,076.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,518.20 : 43,435.25 = 22,550.15 : x
  2. Step 2: Convert to fraction form
    31,518.20/43,435.25 = 22,550.15/x
  3. Step 3: Cross multiply
    31,518.20x = 43,435.25 × 22,550.15
  4. Step 4: Simplify right side
    31,518.20x = 979,471,402.79
  5. Step 5: Solve for x
    x = 979,471,402.79/31,518.20
  6. Step 6: Final answer
    x = 31,076.38

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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.