Home / 31,722.78-47,532.26-19,204.86

Finding the Fourth Proportional to 31,722.78, 47,532.26 and 19,204.86

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Solution

The fourth proportional to 31,722.78, 47,532.26 and 19,204.86 is: 28,775.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,722.78 : 47,532.26 = 19,204.86 : x
  2. Step 2: Convert to fraction form
    31,722.78/47,532.26 = 19,204.86/x
  3. Step 3: Cross multiply
    31,722.78x = 47,532.26 × 19,204.86
  4. Step 4: Simplify right side
    31,722.78x = 912,850,469.60
  5. Step 5: Solve for x
    x = 912,850,469.60/31,722.78
  6. Step 6: Final answer
    x = 28,775.87

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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.