Home / 31,880.88-47,821.52-11,104.36

Finding the Fourth Proportional to 31,880.88, 47,821.52 and 11,104.36

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Solution

The fourth proportional to 31,880.88, 47,821.52 and 11,104.36 is: 16,656.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,880.88 : 47,821.52 = 11,104.36 : x
  2. Step 2: Convert to fraction form
    31,880.88/47,821.52 = 11,104.36/x
  3. Step 3: Cross multiply
    31,880.88x = 47,821.52 × 11,104.36
  4. Step 4: Simplify right side
    31,880.88x = 531,027,373.83
  5. Step 5: Solve for x
    x = 531,027,373.83/31,880.88
  6. Step 6: Final answer
    x = 16,656.61

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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.