Home / 39,898.82-55,060.55-21,993.44

Finding the Fourth Proportional to 39,898.82, 55,060.55 and 21,993.44

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Solution

The fourth proportional to 39,898.82, 55,060.55 and 21,993.44 is: 30,351.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,898.82 : 55,060.55 = 21,993.44 : x
  2. Step 2: Convert to fraction form
    39,898.82/55,060.55 = 21,993.44/x
  3. Step 3: Cross multiply
    39,898.82x = 55,060.55 × 21,993.44
  4. Step 4: Simplify right side
    39,898.82x = 1,210,970,517.52
  5. Step 5: Solve for x
    x = 1,210,970,517.52/39,898.82
  6. Step 6: Final answer
    x = 30,351.04

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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.