Home / 31,383.15-43,296.22-20,049.70

Finding the Fourth Proportional to 31,383.15, 43,296.22 and 20,049.70

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Solution

The fourth proportional to 31,383.15, 43,296.22 and 20,049.70 is: 27,660.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,383.15 : 43,296.22 = 20,049.70 : x
  2. Step 2: Convert to fraction form
    31,383.15/43,296.22 = 20,049.70/x
  3. Step 3: Cross multiply
    31,383.15x = 43,296.22 × 20,049.70
  4. Step 4: Simplify right side
    31,383.15x = 868,076,341.91
  5. Step 5: Solve for x
    x = 868,076,341.91/31,383.15
  6. Step 6: Final answer
    x = 27,660.59

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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.