Home / 31,864.87-47,794.19-9,678.44

Finding the Fourth Proportional to 31,864.87, 47,794.19 and 9,678.44

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Solution

The fourth proportional to 31,864.87, 47,794.19 and 9,678.44 is: 14,516.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,864.87 : 47,794.19 = 9,678.44 : x
  2. Step 2: Convert to fraction form
    31,864.87/47,794.19 = 9,678.44/x
  3. Step 3: Cross multiply
    31,864.87x = 47,794.19 × 9,678.44
  4. Step 4: Simplify right side
    31,864.87x = 462,573,043.35
  5. Step 5: Solve for x
    x = 462,573,043.35/31,864.87
  6. Step 6: Final answer
    x = 14,516.71

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1.5x scale

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.