Home / 20,141.89-27,794.29-11,188.64

Finding the Fourth Proportional to 20,141.89, 27,794.29 and 11,188.64

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Solution

The fourth proportional to 20,141.89, 27,794.29 and 11,188.64 is: 15,439.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,141.89 : 27,794.29 = 11,188.64 : x
  2. Step 2: Convert to fraction form
    20,141.89/27,794.29 = 11,188.64/x
  3. Step 3: Cross multiply
    20,141.89x = 27,794.29 × 11,188.64
  4. Step 4: Simplify right side
    20,141.89x = 310,980,304.87
  5. Step 5: Solve for x
    x = 310,980,304.87/20,141.89
  6. Step 6: Final answer
    x = 15,439.48

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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.