Home / 31,255.56-43,118.92-18,673

Finding the Fourth Proportional to 31,255.56, 43,118.92 and 18,673

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Solution

The fourth proportional to 31,255.56, 43,118.92 and 18,673 is: 25,760.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,255.56 : 43,118.92 = 18,673 : x
  2. Step 2: Convert to fraction form
    31,255.56/43,118.92 = 18,673/x
  3. Step 3: Cross multiply
    31,255.56x = 43,118.92 × 18,673
  4. Step 4: Simplify right side
    31,255.56x = 805,159,593.16
  5. Step 5: Solve for x
    x = 805,159,593.16/31,255.56
  6. Step 6: Final answer
    x = 25,760.52

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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.