Home / 20,101.32-27,738.86-11,148.62

Finding the Fourth Proportional to 20,101.32, 27,738.86 and 11,148.62

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Solution

The fourth proportional to 20,101.32, 27,738.86 and 11,148.62 is: 15,384.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101.32 : 27,738.86 = 11,148.62 : x
  2. Step 2: Convert to fraction form
    20,101.32/27,738.86 = 11,148.62/x
  3. Step 3: Cross multiply
    20,101.32x = 27,738.86 × 11,148.62
  4. Step 4: Simplify right side
    20,101.32x = 309,250,022.98
  5. Step 5: Solve for x
    x = 309,250,022.98/20,101.32
  6. Step 6: Final answer
    x = 15,384.56

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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.