Home / 31,975.98-47,964.38-12,255.72

Finding the Fourth Proportional to 31,975.98, 47,964.38 and 12,255.72

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Solution

The fourth proportional to 31,975.98, 47,964.38 and 12,255.72 is: 18,383.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,975.98 : 47,964.38 = 12,255.72 : x
  2. Step 2: Convert to fraction form
    31,975.98/47,964.38 = 12,255.72/x
  3. Step 3: Cross multiply
    31,975.98x = 47,964.38 × 12,255.72
  4. Step 4: Simplify right side
    31,975.98x = 587,837,949.98
  5. Step 5: Solve for x
    x = 587,837,949.98/31,975.98
  6. Step 6: Final answer
    x = 18,383.74

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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.