Home / 31,910.22-47,865.34-14,359.56

Finding the Fourth Proportional to 31,910.22, 47,865.34 and 14,359.56

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Solution

The fourth proportional to 31,910.22, 47,865.34 and 14,359.56 is: 21,539.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,910.22 : 47,865.34 = 14,359.56 : x
  2. Step 2: Convert to fraction form
    31,910.22/47,865.34 = 14,359.56/x
  3. Step 3: Cross multiply
    31,910.22x = 47,865.34 × 14,359.56
  4. Step 4: Simplify right side
    31,910.22x = 687,325,221.65
  5. Step 5: Solve for x
    x = 687,325,221.65/31,910.22
  6. Step 6: Final answer
    x = 21,539.34

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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.