Home / 31,782.19-47,654.82-12,049.98

Finding the Fourth Proportional to 31,782.19, 47,654.82 and 12,049.98

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Solution

The fourth proportional to 31,782.19, 47,654.82 and 12,049.98 is: 18,067.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,782.19 : 47,654.82 = 12,049.98 : x
  2. Step 2: Convert to fraction form
    31,782.19/47,654.82 = 12,049.98/x
  3. Step 3: Cross multiply
    31,782.19x = 47,654.82 × 12,049.98
  4. Step 4: Simplify right side
    31,782.19x = 574,239,751.15
  5. Step 5: Solve for x
    x = 574,239,751.15/31,782.19
  6. Step 6: Final answer
    x = 18,067.97

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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.