Home / 31,195.80-43,037.94-19,238.40

Finding the Fourth Proportional to 31,195.80, 43,037.94 and 19,238.40

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Solution

The fourth proportional to 31,195.80, 43,037.94 and 19,238.40 is: 26,541.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,195.80 : 43,037.94 = 19,238.40 : x
  2. Step 2: Convert to fraction form
    31,195.80/43,037.94 = 19,238.40/x
  3. Step 3: Cross multiply
    31,195.80x = 43,037.94 × 19,238.40
  4. Step 4: Simplify right side
    31,195.80x = 827,981,104.90
  5. Step 5: Solve for x
    x = 827,981,104.90/31,195.80
  6. Step 6: Final answer
    x = 26,541.43

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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.