Home / 39,786.60-54,902.84-22,790.91

Finding the Fourth Proportional to 39,786.60, 54,902.84 and 22,790.91

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Solution

The fourth proportional to 39,786.60, 54,902.84 and 22,790.91 is: 31,449.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,786.60 : 54,902.84 = 22,790.91 : x
  2. Step 2: Convert to fraction form
    39,786.60/54,902.84 = 22,790.91/x
  3. Step 3: Cross multiply
    39,786.60x = 54,902.84 × 22,790.91
  4. Step 4: Simplify right side
    39,786.60x = 1,251,285,571.23
  5. Step 5: Solve for x
    x = 1,251,285,571.23/39,786.60
  6. Step 6: Final answer
    x = 31,449.92

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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.