Home / 20,204.51-30,304.42-7,724.25

Finding the Fourth Proportional to 20,204.51, 30,304.42 and 7,724.25

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Solution

The fourth proportional to 20,204.51, 30,304.42 and 7,724.25 is: 11,585.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,204.51 : 30,304.42 = 7,724.25 : x
  2. Step 2: Convert to fraction form
    20,204.51/30,304.42 = 7,724.25/x
  3. Step 3: Cross multiply
    20,204.51x = 30,304.42 × 7,724.25
  4. Step 4: Simplify right side
    20,204.51x = 234,078,896.87
  5. Step 5: Solve for x
    x = 234,078,896.87/20,204.51
  6. Step 6: Final answer
    x = 11,585.48

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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.