Home / 31,997.76-47,993.40-8,626.56

Finding the Fourth Proportional to 31,997.76, 47,993.40 and 8,626.56

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Solution

The fourth proportional to 31,997.76, 47,993.40 and 8,626.56 is: 12,938.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,997.76 : 47,993.40 = 8,626.56 : x
  2. Step 2: Convert to fraction form
    31,997.76/47,993.40 = 8,626.56/x
  3. Step 3: Cross multiply
    31,997.76x = 47,993.40 × 8,626.56
  4. Step 4: Simplify right side
    31,997.76x = 414,017,944.70
  5. Step 5: Solve for x
    x = 414,017,944.70/31,997.76
  6. Step 6: Final answer
    x = 12,938.97

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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.