Home / 31,815.62-47,725.71-8,441.54

Finding the Fourth Proportional to 31,815.62, 47,725.71 and 8,441.54

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Solution

The fourth proportional to 31,815.62, 47,725.71 and 8,441.54 is: 12,662.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,815.62 : 47,725.71 = 8,441.54 : x
  2. Step 2: Convert to fraction form
    31,815.62/47,725.71 = 8,441.54/x
  3. Step 3: Cross multiply
    31,815.62x = 47,725.71 × 8,441.54
  4. Step 4: Simplify right side
    31,815.62x = 402,878,489.99
  5. Step 5: Solve for x
    x = 402,878,489.99/31,815.62
  6. Step 6: Final answer
    x = 12,662.91

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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.