Home / 31,923.75-47,888.37-8,231.09

Finding the Fourth Proportional to 31,923.75, 47,888.37 and 8,231.09

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Solution

The fourth proportional to 31,923.75, 47,888.37 and 8,231.09 is: 12,347.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,923.75 : 47,888.37 = 8,231.09 : x
  2. Step 2: Convert to fraction form
    31,923.75/47,888.37 = 8,231.09/x
  3. Step 3: Cross multiply
    31,923.75x = 47,888.37 × 8,231.09
  4. Step 4: Simplify right side
    31,923.75x = 394,173,274.85
  5. Step 5: Solve for x
    x = 394,173,274.85/31,923.75
  6. Step 6: Final answer
    x = 12,347.34

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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.