Home / 31,645.24-47,471.10-11,940.37

Finding the Fourth Proportional to 31,645.24, 47,471.10 and 11,940.37

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Solution

The fourth proportional to 31,645.24, 47,471.10 and 11,940.37 is: 17,911.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,645.24 : 47,471.10 = 11,940.37 : x
  2. Step 2: Convert to fraction form
    31,645.24/47,471.10 = 11,940.37/x
  3. Step 3: Cross multiply
    31,645.24x = 47,471.10 × 11,940.37
  4. Step 4: Simplify right side
    31,645.24x = 566,822,498.31
  5. Step 5: Solve for x
    x = 566,822,498.31/31,645.24
  6. Step 6: Final answer
    x = 17,911.78

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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.