Home / 26,738.30-36,902.79-15,405.64

Finding the Fourth Proportional to 26,738.30, 36,902.79 and 15,405.64

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Solution

The fourth proportional to 26,738.30, 36,902.79 and 15,405.64 is: 21,262.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,738.30 : 36,902.79 = 15,405.64 : x
  2. Step 2: Convert to fraction form
    26,738.30/36,902.79 = 15,405.64/x
  3. Step 3: Cross multiply
    26,738.30x = 36,902.79 × 15,405.64
  4. Step 4: Simplify right side
    26,738.30x = 568,511,005.48
  5. Step 5: Solve for x
    x = 568,511,005.48/26,738.30
  6. Step 6: Final answer
    x = 21,262.05

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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.