Home / 20,891.44-31,297.92-10,349.20

Finding the Fourth Proportional to 20,891.44, 31,297.92 and 10,349.20

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Solution

The fourth proportional to 20,891.44, 31,297.92 and 10,349.20 is: 15,504.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,891.44 : 31,297.92 = 10,349.20 : x
  2. Step 2: Convert to fraction form
    20,891.44/31,297.92 = 10,349.20/x
  3. Step 3: Cross multiply
    20,891.44x = 31,297.92 × 10,349.20
  4. Step 4: Simplify right side
    20,891.44x = 323,908,433.66
  5. Step 5: Solve for x
    x = 323,908,433.66/20,891.44
  6. Step 6: Final answer
    x = 15,504.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.