Home / 31,067.04-42,872.58-16,919.76

Finding the Fourth Proportional to 31,067.04, 42,872.58 and 16,919.76

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Solution

The fourth proportional to 31,067.04, 42,872.58 and 16,919.76 is: 23,349.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,067.04 : 42,872.58 = 16,919.76 : x
  2. Step 2: Convert to fraction form
    31,067.04/42,872.58 = 16,919.76/x
  3. Step 3: Cross multiply
    31,067.04x = 42,872.58 × 16,919.76
  4. Step 4: Simplify right side
    31,067.04x = 725,393,764.18
  5. Step 5: Solve for x
    x = 725,393,764.18/31,067.04
  6. Step 6: Final answer
    x = 23,349.30

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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.