Home / 31,738.79-47,611.16-8,942.55

Finding the Fourth Proportional to 31,738.79, 47,611.16 and 8,942.55

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Solution

The fourth proportional to 31,738.79, 47,611.16 and 8,942.55 is: 13,414.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,738.79 : 47,611.16 = 8,942.55 : x
  2. Step 2: Convert to fraction form
    31,738.79/47,611.16 = 8,942.55/x
  3. Step 3: Cross multiply
    31,738.79x = 47,611.16 × 8,942.55
  4. Step 4: Simplify right side
    31,738.79x = 425,765,201.21
  5. Step 5: Solve for x
    x = 425,765,201.21/31,738.79
  6. Step 6: Final answer
    x = 13,414.67

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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.