Home / 31,655.85-43,690.44-18,234.88

Finding the Fourth Proportional to 31,655.85, 43,690.44 and 18,234.88

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Solution

The fourth proportional to 31,655.85, 43,690.44 and 18,234.88 is: 25,167.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,655.85 : 43,690.44 = 18,234.88 : x
  2. Step 2: Convert to fraction form
    31,655.85/43,690.44 = 18,234.88/x
  3. Step 3: Cross multiply
    31,655.85x = 43,690.44 × 18,234.88
  4. Step 4: Simplify right side
    31,655.85x = 796,689,930.55
  5. Step 5: Solve for x
    x = 796,689,930.55/31,655.85
  6. Step 6: Final answer
    x = 25,167.23

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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.