Home / 31,506.78-47,208.86-13,481.04

Finding the Fourth Proportional to 31,506.78, 47,208.86 and 13,481.04

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Solution

The fourth proportional to 31,506.78, 47,208.86 and 13,481.04 is: 20,199.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,506.78 : 47,208.86 = 13,481.04 : x
  2. Step 2: Convert to fraction form
    31,506.78/47,208.86 = 13,481.04/x
  3. Step 3: Cross multiply
    31,506.78x = 47,208.86 × 13,481.04
  4. Step 4: Simplify right side
    31,506.78x = 636,424,530.01
  5. Step 5: Solve for x
    x = 636,424,530.01/31,506.78
  6. Step 6: Final answer
    x = 20,199.61

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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.