Home / 39,903.53-55,067.24-21,999.17

Finding the Fourth Proportional to 39,903.53, 55,067.24 and 21,999.17

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Solution

The fourth proportional to 39,903.53, 55,067.24 and 21,999.17 is: 30,359.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,903.53 : 55,067.24 = 21,999.17 : x
  2. Step 2: Convert to fraction form
    39,903.53/55,067.24 = 21,999.17/x
  3. Step 3: Cross multiply
    39,903.53x = 55,067.24 × 21,999.17
  4. Step 4: Simplify right side
    39,903.53x = 1,211,433,601.86
  5. Step 5: Solve for x
    x = 1,211,433,601.86/39,903.53
  6. Step 6: Final answer
    x = 30,359.06

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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.