Home / 31,247.72-43,121.67-17,818.69

Finding the Fourth Proportional to 31,247.72, 43,121.67 and 17,818.69

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Solution

The fourth proportional to 31,247.72, 43,121.67 and 17,818.69 is: 24,589.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,247.72 : 43,121.67 = 17,818.69 : x
  2. Step 2: Convert to fraction form
    31,247.72/43,121.67 = 17,818.69/x
  3. Step 3: Cross multiply
    31,247.72x = 43,121.67 × 17,818.69
  4. Step 4: Simplify right side
    31,247.72x = 768,371,365.31
  5. Step 5: Solve for x
    x = 768,371,365.31/31,247.72
  6. Step 6: Final answer
    x = 24,589.68

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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.