Home / 31,811.58-47,738.49-21,293.34

Finding the Fourth Proportional to 31,811.58, 47,738.49 and 21,293.34

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Solution

The fourth proportional to 31,811.58, 47,738.49 and 21,293.34 is: 31,954.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,811.58 : 47,738.49 = 21,293.34 : x
  2. Step 2: Convert to fraction form
    31,811.58/47,738.49 = 21,293.34/x
  3. Step 3: Cross multiply
    31,811.58x = 47,738.49 × 21,293.34
  4. Step 4: Simplify right side
    31,811.58x = 1,016,511,898.66
  5. Step 5: Solve for x
    x = 1,016,511,898.66/31,811.58
  6. Step 6: Final answer
    x = 31,954.15

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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.