Home / 31,109.78-46,664.66-7,736.21

Finding the Fourth Proportional to 31,109.78, 46,664.66 and 7,736.21

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Solution

The fourth proportional to 31,109.78, 46,664.66 and 7,736.21 is: 11,604.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,109.78 : 46,664.66 = 7,736.21 : x
  2. Step 2: Convert to fraction form
    31,109.78/46,664.66 = 7,736.21/x
  3. Step 3: Cross multiply
    31,109.78x = 46,664.66 × 7,736.21
  4. Step 4: Simplify right side
    31,109.78x = 361,007,687.32
  5. Step 5: Solve for x
    x = 361,007,687.32/31,109.78
  6. Step 6: Final answer
    x = 11,604.32

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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.