Home / 31,633.10-43,664.66-20,333.60

Finding the Fourth Proportional to 31,633.10, 43,664.66 and 20,333.60

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Solution

The fourth proportional to 31,633.10, 43,664.66 and 20,333.60 is: 28,067.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,633.10 : 43,664.66 = 20,333.60 : x
  2. Step 2: Convert to fraction form
    31,633.10/43,664.66 = 20,333.60/x
  3. Step 3: Cross multiply
    31,633.10x = 43,664.66 × 20,333.60
  4. Step 4: Simplify right side
    31,633.10x = 887,859,410.58
  5. Step 5: Solve for x
    x = 887,859,410.58/31,633.10
  6. Step 6: Final answer
    x = 28,067.42

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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.