Home / 31,286.56-43,175.10-16,946.03

Finding the Fourth Proportional to 31,286.56, 43,175.10 and 16,946.03

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Solution

The fourth proportional to 31,286.56, 43,175.10 and 16,946.03 is: 23,385.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,286.56 : 43,175.10 = 16,946.03 : x
  2. Step 2: Convert to fraction form
    31,286.56/43,175.10 = 16,946.03/x
  3. Step 3: Cross multiply
    31,286.56x = 43,175.10 × 16,946.03
  4. Step 4: Simplify right side
    31,286.56x = 731,646,539.85
  5. Step 5: Solve for x
    x = 731,646,539.85/31,286.56
  6. Step 6: Final answer
    x = 23,385.33

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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.