Home / 31,093.92-46,640.40-7,720.56

Finding the Fourth Proportional to 31,093.92, 46,640.40 and 7,720.56

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Solution

The fourth proportional to 31,093.92, 46,640.40 and 7,720.56 is: 11,580.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,093.92 : 46,640.40 = 7,720.56 : x
  2. Step 2: Convert to fraction form
    31,093.92/46,640.40 = 7,720.56/x
  3. Step 3: Cross multiply
    31,093.92x = 46,640.40 × 7,720.56
  4. Step 4: Simplify right side
    31,093.92x = 360,090,006.62
  5. Step 5: Solve for x
    x = 360,090,006.62/31,093.92
  6. Step 6: Final answer
    x = 11,580.72

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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.