Home / 27,724.33-38,261.39-15,627.79

Finding the Fourth Proportional to 27,724.33, 38,261.39 and 15,627.79

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Solution

The fourth proportional to 27,724.33, 38,261.39 and 15,627.79 is: 21,567.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,724.33 : 38,261.39 = 15,627.79 : x
  2. Step 2: Convert to fraction form
    27,724.33/38,261.39 = 15,627.79/x
  3. Step 3: Cross multiply
    27,724.33x = 38,261.39 × 15,627.79
  4. Step 4: Simplify right side
    27,724.33x = 597,940,968.03
  5. Step 5: Solve for x
    x = 597,940,968.03/27,724.33
  6. Step 6: Final answer
    x = 21,567.37

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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.