Home / 31,889.91-47,813.19-17,859.57

Finding the Fourth Proportional to 31,889.91, 47,813.19 and 17,859.57

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Solution

The fourth proportional to 31,889.91, 47,813.19 and 17,859.57 is: 26,777.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,889.91 : 47,813.19 = 17,859.57 : x
  2. Step 2: Convert to fraction form
    31,889.91/47,813.19 = 17,859.57/x
  3. Step 3: Cross multiply
    31,889.91x = 47,813.19 × 17,859.57
  4. Step 4: Simplify right side
    31,889.91x = 853,923,013.73
  5. Step 5: Solve for x
    x = 853,923,013.73/31,889.91
  6. Step 6: Final answer
    x = 26,777.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.