Home / 31,438.14-47,163.78-9,249.66

Finding the Fourth Proportional to 31,438.14, 47,163.78 and 9,249.66

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Solution

The fourth proportional to 31,438.14, 47,163.78 and 9,249.66 is: 13,876.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,438.14 : 47,163.78 = 9,249.66 : x
  2. Step 2: Convert to fraction form
    31,438.14/47,163.78 = 9,249.66/x
  3. Step 3: Cross multiply
    31,438.14x = 47,163.78 × 9,249.66
  4. Step 4: Simplify right side
    31,438.14x = 436,248,929.31
  5. Step 5: Solve for x
    x = 436,248,929.31/31,438.14
  6. Step 6: Final answer
    x = 13,876.42

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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.