Home / 20,101.37-27,738.57-11,148.25

Finding the Fourth Proportional to 20,101.37, 27,738.57 and 11,148.25

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Solution

The fourth proportional to 20,101.37, 27,738.57 and 11,148.25 is: 15,383.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101.37 : 27,738.57 = 11,148.25 : x
  2. Step 2: Convert to fraction form
    20,101.37/27,738.57 = 11,148.25/x
  3. Step 3: Cross multiply
    20,101.37x = 27,738.57 × 11,148.25
  4. Step 4: Simplify right side
    20,101.37x = 309,236,474.76
  5. Step 5: Solve for x
    x = 309,236,474.76/20,101.37
  6. Step 6: Final answer
    x = 15,383.85

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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.