Home / 31,287.12-43,175.99-16,946.64

Finding the Fourth Proportional to 31,287.12, 43,175.99 and 16,946.64

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Solution

The fourth proportional to 31,287.12, 43,175.99 and 16,946.64 is: 23,386.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,287.12 : 43,175.99 = 16,946.64 : x
  2. Step 2: Convert to fraction form
    31,287.12/43,175.99 = 16,946.64/x
  3. Step 3: Cross multiply
    31,287.12x = 43,175.99 × 16,946.64
  4. Step 4: Simplify right side
    31,287.12x = 731,687,874.44
  5. Step 5: Solve for x
    x = 731,687,874.44/31,287.12
  6. Step 6: Final answer
    x = 23,386.23

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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.