Home / 31,704.78-43,753.23-18,273.81

Finding the Fourth Proportional to 31,704.78, 43,753.23 and 18,273.81

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Solution

The fourth proportional to 31,704.78, 43,753.23 and 18,273.81 is: 25,218.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,704.78 : 43,753.23 = 18,273.81 : x
  2. Step 2: Convert to fraction form
    31,704.78/43,753.23 = 18,273.81/x
  3. Step 3: Cross multiply
    31,704.78x = 43,753.23 × 18,273.81
  4. Step 4: Simplify right side
    31,704.78x = 799,538,211.91
  5. Step 5: Solve for x
    x = 799,538,211.91/31,704.78
  6. Step 6: Final answer
    x = 25,218.22

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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.