Home / 31,961.58-47,949.29-12,240.14

Finding the Fourth Proportional to 31,961.58, 47,949.29 and 12,240.14

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Solution

The fourth proportional to 31,961.58, 47,949.29 and 12,240.14 is: 18,362.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,961.58 : 47,949.29 = 12,240.14 : x
  2. Step 2: Convert to fraction form
    31,961.58/47,949.29 = 12,240.14/x
  3. Step 3: Cross multiply
    31,961.58x = 47,949.29 × 12,240.14
  4. Step 4: Simplify right side
    31,961.58x = 586,905,813.35
  5. Step 5: Solve for x
    x = 586,905,813.35/31,961.58
  6. Step 6: Final answer
    x = 18,362.85

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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.