Home / 31,431.75-47,137.57-10,367.85

Finding the Fourth Proportional to 31,431.75, 47,137.57 and 10,367.85

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Solution

The fourth proportional to 31,431.75, 47,137.57 and 10,367.85 is: 15,548.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,431.75 : 47,137.57 = 10,367.85 : x
  2. Step 2: Convert to fraction form
    31,431.75/47,137.57 = 10,367.85/x
  3. Step 3: Cross multiply
    31,431.75x = 47,137.57 × 10,367.85
  4. Step 4: Simplify right side
    31,431.75x = 488,715,255.12
  5. Step 5: Solve for x
    x = 488,715,255.12/31,431.75
  6. Step 6: Final answer
    x = 15,548.46

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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.