Home / 31,467.80-47,201.82-12,748.19

Finding the Fourth Proportional to 31,467.80, 47,201.82 and 12,748.19

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Solution

The fourth proportional to 31,467.80, 47,201.82 and 12,748.19 is: 19,122.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,467.80 : 47,201.82 = 12,748.19 : x
  2. Step 2: Convert to fraction form
    31,467.80/47,201.82 = 12,748.19/x
  3. Step 3: Cross multiply
    31,467.80x = 47,201.82 × 12,748.19
  4. Step 4: Simplify right side
    31,467.80x = 601,737,469.96
  5. Step 5: Solve for x
    x = 601,737,469.96/31,467.80
  6. Step 6: Final answer
    x = 19,122.33

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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.