Home / 31,704.42-43,742.19-18,273.84

Finding the Fourth Proportional to 31,704.42, 43,742.19 and 18,273.84

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Solution

The fourth proportional to 31,704.42, 43,742.19 and 18,273.84 is: 25,212.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,704.42 : 43,742.19 = 18,273.84 : x
  2. Step 2: Convert to fraction form
    31,704.42/43,742.19 = 18,273.84/x
  3. Step 3: Cross multiply
    31,704.42x = 43,742.19 × 18,273.84
  4. Step 4: Simplify right side
    31,704.42x = 799,337,781.31
  5. Step 5: Solve for x
    x = 799,337,781.31/31,704.42
  6. Step 6: Final answer
    x = 25,212.19

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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.