Home / 31,215.04-43,076.16-17,067.84

Finding the Fourth Proportional to 31,215.04, 43,076.16 and 17,067.84

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Solution

The fourth proportional to 31,215.04, 43,076.16 and 17,067.84 is: 23,553.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,215.04 : 43,076.16 = 17,067.84 : x
  2. Step 2: Convert to fraction form
    31,215.04/43,076.16 = 17,067.84/x
  3. Step 3: Cross multiply
    31,215.04x = 43,076.16 × 17,067.84
  4. Step 4: Simplify right side
    31,215.04x = 735,217,006.69
  5. Step 5: Solve for x
    x = 735,217,006.69/31,215.04
  6. Step 6: Final answer
    x = 23,553.29

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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.