Home / 20,304.82-30,458.16-7,157.32

Finding the Fourth Proportional to 20,304.82, 30,458.16 and 7,157.32

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Solution

The fourth proportional to 20,304.82, 30,458.16 and 7,157.32 is: 10,736.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,304.82 : 30,458.16 = 7,157.32 : x
  2. Step 2: Convert to fraction form
    20,304.82/30,458.16 = 7,157.32/x
  3. Step 3: Cross multiply
    20,304.82x = 30,458.16 × 7,157.32
  4. Step 4: Simplify right side
    20,304.82x = 217,998,797.73
  5. Step 5: Solve for x
    x = 217,998,797.73/20,304.82
  6. Step 6: Final answer
    x = 10,736.31

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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.