Home / 31,771.05-47,640.30-16,786.22

Finding the Fourth Proportional to 31,771.05, 47,640.30 and 16,786.22

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Solution

The fourth proportional to 31,771.05, 47,640.30 and 16,786.22 is: 25,170.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,771.05 : 47,640.30 = 16,786.22 : x
  2. Step 2: Convert to fraction form
    31,771.05/47,640.30 = 16,786.22/x
  3. Step 3: Cross multiply
    31,771.05x = 47,640.30 × 16,786.22
  4. Step 4: Simplify right side
    31,771.05x = 799,700,255.52
  5. Step 5: Solve for x
    x = 799,700,255.52/31,771.05
  6. Step 6: Final answer
    x = 25,170.72

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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.