Home / 27,697.72-38,221.86-17,087.08

Finding the Fourth Proportional to 27,697.72, 38,221.86 and 17,087.08

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Solution

The fourth proportional to 27,697.72, 38,221.86 and 17,087.08 is: 23,579.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,697.72 : 38,221.86 = 17,087.08 : x
  2. Step 2: Convert to fraction form
    27,697.72/38,221.86 = 17,087.08/x
  3. Step 3: Cross multiply
    27,697.72x = 38,221.86 × 17,087.08
  4. Step 4: Simplify right side
    27,697.72x = 653,099,979.57
  5. Step 5: Solve for x
    x = 653,099,979.57/27,697.72
  6. Step 6: Final answer
    x = 23,579.56

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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.