Home / 31,427.80-43,370.76-17,087.80

Finding the Fourth Proportional to 31,427.80, 43,370.76 and 17,087.80

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Solution

The fourth proportional to 31,427.80, 43,370.76 and 17,087.80 is: 23,581.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,427.80 : 43,370.76 = 17,087.80 : x
  2. Step 2: Convert to fraction form
    31,427.80/43,370.76 = 17,087.80/x
  3. Step 3: Cross multiply
    31,427.80x = 43,370.76 × 17,087.80
  4. Step 4: Simplify right side
    31,427.80x = 741,110,872.73
  5. Step 5: Solve for x
    x = 741,110,872.73/31,427.80
  6. Step 6: Final answer
    x = 23,581.38

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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.