Home / 31,105.14-46,648.14-8,912.57

Finding the Fourth Proportional to 31,105.14, 46,648.14 and 8,912.57

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Solution

The fourth proportional to 31,105.14, 46,648.14 and 8,912.57 is: 13,366.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,105.14 : 46,648.14 = 8,912.57 : x
  2. Step 2: Convert to fraction form
    31,105.14/46,648.14 = 8,912.57/x
  3. Step 3: Cross multiply
    31,105.14x = 46,648.14 × 8,912.57
  4. Step 4: Simplify right side
    31,105.14x = 415,754,579.88
  5. Step 5: Solve for x
    x = 415,754,579.88/31,105.14
  6. Step 6: Final answer
    x = 13,366.11

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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.