Home / 31,951.20-47,904.12-12,213.12

Finding the Fourth Proportional to 31,951.20, 47,904.12 and 12,213.12

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Solution

The fourth proportional to 31,951.20, 47,904.12 and 12,213.12 is: 18,311.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,951.20 : 47,904.12 = 12,213.12 : x
  2. Step 2: Convert to fraction form
    31,951.20/47,904.12 = 12,213.12/x
  3. Step 3: Cross multiply
    31,951.20x = 47,904.12 × 12,213.12
  4. Step 4: Simplify right side
    31,951.20x = 585,058,766.05
  5. Step 5: Solve for x
    x = 585,058,766.05/31,951.20
  6. Step 6: Final answer
    x = 18,311.01

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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.