Home / 31,849.52-47,775.28-8,157.22

Finding the Fourth Proportional to 31,849.52, 47,775.28 and 8,157.22

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Solution

The fourth proportional to 31,849.52, 47,775.28 and 8,157.22 is: 12,236.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,849.52 : 47,775.28 = 8,157.22 : x
  2. Step 2: Convert to fraction form
    31,849.52/47,775.28 = 8,157.22/x
  3. Step 3: Cross multiply
    31,849.52x = 47,775.28 × 8,157.22
  4. Step 4: Simplify right side
    31,849.52x = 389,713,469.52
  5. Step 5: Solve for x
    x = 389,713,469.52/31,849.52
  6. Step 6: Final answer
    x = 12,236.09

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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.