Home / 31,310.68-43,222.26-18,733

Finding the Fourth Proportional to 31,310.68, 43,222.26 and 18,733

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Solution

The fourth proportional to 31,310.68, 43,222.26 and 18,733 is: 25,859.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,310.68 : 43,222.26 = 18,733 : x
  2. Step 2: Convert to fraction form
    31,310.68/43,222.26 = 18,733/x
  3. Step 3: Cross multiply
    31,310.68x = 43,222.26 × 18,733
  4. Step 4: Simplify right side
    31,310.68x = 809,682,596.58
  5. Step 5: Solve for x
    x = 809,682,596.58/31,310.68
  6. Step 6: Final answer
    x = 25,859.63

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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.