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Finding the Fourth Proportional to 20,193, 27,866.58 and 11,240.88

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Solution

The fourth proportional to 20,193, 27,866.58 and 11,240.88 is: 15,512.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,193 : 27,866.58 = 11,240.88 : x
  2. Step 2: Convert to fraction form
    20,193/27,866.58 = 11,240.88/x
  3. Step 3: Cross multiply
    20,193x = 27,866.58 × 11,240.88
  4. Step 4: Simplify right side
    20,193x = 313,244,881.79
  5. Step 5: Solve for x
    x = 313,244,881.79/20,193
  6. Step 6: Final answer
    x = 15,512.55

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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.