Home / 31,382.43-43,299.30-18,625.02

Finding the Fourth Proportional to 31,382.43, 43,299.30 and 18,625.02

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Solution

The fourth proportional to 31,382.43, 43,299.30 and 18,625.02 is: 25,697.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,382.43 : 43,299.30 = 18,625.02 : x
  2. Step 2: Convert to fraction form
    31,382.43/43,299.30 = 18,625.02/x
  3. Step 3: Cross multiply
    31,382.43x = 43,299.30 × 18,625.02
  4. Step 4: Simplify right side
    31,382.43x = 806,450,328.49
  5. Step 5: Solve for x
    x = 806,450,328.49/31,382.43
  6. Step 6: Final answer
    x = 25,697.51

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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.