Home / 19,724.85-27,220.46-11,227.64

Finding the Fourth Proportional to 19,724.85, 27,220.46 and 11,227.64

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Solution

The fourth proportional to 19,724.85, 27,220.46 and 11,227.64 is: 15,494.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,724.85 : 27,220.46 = 11,227.64 : x
  2. Step 2: Convert to fraction form
    19,724.85/27,220.46 = 11,227.64/x
  3. Step 3: Cross multiply
    19,724.85x = 27,220.46 × 11,227.64
  4. Step 4: Simplify right side
    19,724.85x = 305,621,333.27
  5. Step 5: Solve for x
    x = 305,621,333.27/19,724.85
  6. Step 6: Final answer
    x = 15,494.23

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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.