Home / 31,976.82-47,963.21-9,788.09

Finding the Fourth Proportional to 31,976.82, 47,963.21 and 9,788.09

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Solution

The fourth proportional to 31,976.82, 47,963.21 and 9,788.09 is: 14,681.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,976.82 : 47,963.21 = 9,788.09 : x
  2. Step 2: Convert to fraction form
    31,976.82/47,963.21 = 9,788.09/x
  3. Step 3: Cross multiply
    31,976.82x = 47,963.21 × 9,788.09
  4. Step 4: Simplify right side
    31,976.82x = 469,467,927.41
  5. Step 5: Solve for x
    x = 469,467,927.41/31,976.82
  6. Step 6: Final answer
    x = 14,681.51

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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.