Home / 27,960.72-38,584.90-15,385.44

Finding the Fourth Proportional to 27,960.72, 38,584.90 and 15,385.44

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Solution

The fourth proportional to 27,960.72, 38,584.90 and 15,385.44 is: 21,231.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,960.72 : 38,584.90 = 15,385.44 : x
  2. Step 2: Convert to fraction form
    27,960.72/38,584.90 = 15,385.44/x
  3. Step 3: Cross multiply
    27,960.72x = 38,584.90 × 15,385.44
  4. Step 4: Simplify right side
    27,960.72x = 593,645,663.86
  5. Step 5: Solve for x
    x = 593,645,663.86/27,960.72
  6. Step 6: Final answer
    x = 21,231.42

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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.