Home / 31,986.64-47,982.66-8,614.36

Finding the Fourth Proportional to 31,986.64, 47,982.66 and 8,614.36

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Solution

The fourth proportional to 31,986.64, 47,982.66 and 8,614.36 is: 12,922.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,986.64 : 47,982.66 = 8,614.36 : x
  2. Step 2: Convert to fraction form
    31,986.64/47,982.66 = 8,614.36/x
  3. Step 3: Cross multiply
    31,986.64x = 47,982.66 × 8,614.36
  4. Step 4: Simplify right side
    31,986.64x = 413,339,907.00
  5. Step 5: Solve for x
    x = 413,339,907.00/31,986.64
  6. Step 6: Final answer
    x = 12,922.27

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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.