Home / 31,575.80-43,583.20-18,148.44

Finding the Fourth Proportional to 31,575.80, 43,583.20 and 18,148.44

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Solution

The fourth proportional to 31,575.80, 43,583.20 and 18,148.44 is: 25,049.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,575.80 : 43,583.20 = 18,148.44 : x
  2. Step 2: Convert to fraction form
    31,575.80/43,583.20 = 18,148.44/x
  3. Step 3: Cross multiply
    31,575.80x = 43,583.20 × 18,148.44
  4. Step 4: Simplify right side
    31,575.80x = 790,967,090.21
  5. Step 5: Solve for x
    x = 790,967,090.21/31,575.80
  6. Step 6: Final answer
    x = 25,049.79

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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.