Home / 31,616.20-43,634.94-18,869.92

Finding the Fourth Proportional to 31,616.20, 43,634.94 and 18,869.92

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Solution

The fourth proportional to 31,616.20, 43,634.94 and 18,869.92 is: 26,043.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,616.20 : 43,634.94 = 18,869.92 : x
  2. Step 2: Convert to fraction form
    31,616.20/43,634.94 = 18,869.92/x
  3. Step 3: Cross multiply
    31,616.20x = 43,634.94 × 18,869.92
  4. Step 4: Simplify right side
    31,616.20x = 823,387,827.00
  5. Step 5: Solve for x
    x = 823,387,827.00/31,616.20
  6. Step 6: Final answer
    x = 26,043.23

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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.