Home / 20,101.44-27,738.17-11,148.92

Finding the Fourth Proportional to 20,101.44, 27,738.17 and 11,148.92

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Solution

The fourth proportional to 20,101.44, 27,738.17 and 11,148.92 is: 15,384.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101.44 : 27,738.17 = 11,148.92 : x
  2. Step 2: Convert to fraction form
    20,101.44/27,738.17 = 11,148.92/x
  3. Step 3: Cross multiply
    20,101.44x = 27,738.17 × 11,148.92
  4. Step 4: Simplify right side
    20,101.44x = 309,250,638.28
  5. Step 5: Solve for x
    x = 309,250,638.28/20,101.44
  6. Step 6: Final answer
    x = 15,384.50

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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.