Home / 31,721.20-43,777.92-17,575.36

Finding the Fourth Proportional to 31,721.20, 43,777.92 and 17,575.36

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Solution

The fourth proportional to 31,721.20, 43,777.92 and 17,575.36 is: 24,255.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,721.20 : 43,777.92 = 17,575.36 : x
  2. Step 2: Convert to fraction form
    31,721.20/43,777.92 = 17,575.36/x
  3. Step 3: Cross multiply
    31,721.20x = 43,777.92 × 17,575.36
  4. Step 4: Simplify right side
    31,721.20x = 769,412,704.05
  5. Step 5: Solve for x
    x = 769,412,704.05/31,721.20
  6. Step 6: Final answer
    x = 24,255.47

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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.