Home / 33,917.12-46,806.58-20,490.78

Finding the Fourth Proportional to 33,917.12, 46,806.58 and 20,490.78

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Solution

The fourth proportional to 33,917.12, 46,806.58 and 20,490.78 is: 28,277.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,917.12 : 46,806.58 = 20,490.78 : x
  2. Step 2: Convert to fraction form
    33,917.12/46,806.58 = 20,490.78/x
  3. Step 3: Cross multiply
    33,917.12x = 46,806.58 × 20,490.78
  4. Step 4: Simplify right side
    33,917.12x = 959,103,333.33
  5. Step 5: Solve for x
    x = 959,103,333.33/33,917.12
  6. Step 6: Final answer
    x = 28,277.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.