Home / 31,431.50-47,137.20-10,367.60

Finding the Fourth Proportional to 31,431.50, 47,137.20 and 10,367.60

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Solution

The fourth proportional to 31,431.50, 47,137.20 and 10,367.60 is: 15,548.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,431.50 : 47,137.20 = 10,367.60 : x
  2. Step 2: Convert to fraction form
    31,431.50/47,137.20 = 10,367.60/x
  3. Step 3: Cross multiply
    31,431.50x = 47,137.20 × 10,367.60
  4. Step 4: Simplify right side
    31,431.50x = 488,699,634.72
  5. Step 5: Solve for x
    x = 488,699,634.72/31,431.50
  6. Step 6: Final answer
    x = 15,548.09

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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.