Home / 31,252.74-43,128.44-16,912.25

Finding the Fourth Proportional to 31,252.74, 43,128.44 and 16,912.25

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Solution

The fourth proportional to 31,252.74, 43,128.44 and 16,912.25 is: 23,338.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,252.74 : 43,128.44 = 16,912.25 : x
  2. Step 2: Convert to fraction form
    31,252.74/43,128.44 = 16,912.25/x
  3. Step 3: Cross multiply
    31,252.74x = 43,128.44 × 16,912.25
  4. Step 4: Simplify right side
    31,252.74x = 729,399,109.49
  5. Step 5: Solve for x
    x = 729,399,109.49/31,252.74
  6. Step 6: Final answer
    x = 23,338.73

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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.