Home / 31,383.35-43,310.38-17,958.81

Finding the Fourth Proportional to 31,383.35, 43,310.38 and 17,958.81

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Solution

The fourth proportional to 31,383.35, 43,310.38 and 17,958.81 is: 24,783.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,383.35 : 43,310.38 = 17,958.81 : x
  2. Step 2: Convert to fraction form
    31,383.35/43,310.38 = 17,958.81/x
  3. Step 3: Cross multiply
    31,383.35x = 43,310.38 × 17,958.81
  4. Step 4: Simplify right side
    31,383.35x = 777,802,885.45
  5. Step 5: Solve for x
    x = 777,802,885.45/31,383.35
  6. Step 6: Final answer
    x = 24,783.94

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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.