Home / 31,067.66-42,874.45-17,638.47

Finding the Fourth Proportional to 31,067.66, 42,874.45 and 17,638.47

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Solution

The fourth proportional to 31,067.66, 42,874.45 and 17,638.47 is: 24,341.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,067.66 : 42,874.45 = 17,638.47 : x
  2. Step 2: Convert to fraction form
    31,067.66/42,874.45 = 17,638.47/x
  3. Step 3: Cross multiply
    31,067.66x = 42,874.45 × 17,638.47
  4. Step 4: Simplify right side
    31,067.66x = 756,239,656.00
  5. Step 5: Solve for x
    x = 756,239,656.00/31,067.66
  6. Step 6: Final answer
    x = 24,341.70

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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.