Home / 31,805.37-43,899.39-18,384.44

Finding the Fourth Proportional to 31,805.37, 43,899.39 and 18,384.44

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Solution

The fourth proportional to 31,805.37, 43,899.39 and 18,384.44 is: 25,375.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,805.37 : 43,899.39 = 18,384.44 : x
  2. Step 2: Convert to fraction form
    31,805.37/43,899.39 = 18,384.44/x
  3. Step 3: Cross multiply
    31,805.37x = 43,899.39 × 18,384.44
  4. Step 4: Simplify right side
    31,805.37x = 807,065,481.99
  5. Step 5: Solve for x
    x = 807,065,481.99/31,805.37
  6. Step 6: Final answer
    x = 25,375.13

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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.