Home / 31,936.32-47,911.90-10,876.54

Finding the Fourth Proportional to 31,936.32, 47,911.90 and 10,876.54

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Solution

The fourth proportional to 31,936.32, 47,911.90 and 10,876.54 is: 16,317.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,936.32 : 47,911.90 = 10,876.54 : x
  2. Step 2: Convert to fraction form
    31,936.32/47,911.90 = 10,876.54/x
  3. Step 3: Cross multiply
    31,936.32x = 47,911.90 × 10,876.54
  4. Step 4: Simplify right side
    31,936.32x = 521,115,642.44
  5. Step 5: Solve for x
    x = 521,115,642.44/31,936.32
  6. Step 6: Final answer
    x = 16,317.34

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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.