Home / 31,620.42-47,425.82-11,894.36

Finding the Fourth Proportional to 31,620.42, 47,425.82 and 11,894.36

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Solution

The fourth proportional to 31,620.42, 47,425.82 and 11,894.36 is: 17,839.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,620.42 : 47,425.82 = 11,894.36 : x
  2. Step 2: Convert to fraction form
    31,620.42/47,425.82 = 11,894.36/x
  3. Step 3: Cross multiply
    31,620.42x = 47,425.82 × 11,894.36
  4. Step 4: Simplify right side
    31,620.42x = 564,099,776.38
  5. Step 5: Solve for x
    x = 564,099,776.38/31,620.42
  6. Step 6: Final answer
    x = 17,839.73

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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.