Home / 20,073.58-27,700.75-11,121.22

Finding the Fourth Proportional to 20,073.58, 27,700.75 and 11,121.22

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Solution

The fourth proportional to 20,073.58, 27,700.75 and 11,121.22 is: 15,346.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,073.58 : 27,700.75 = 11,121.22 : x
  2. Step 2: Convert to fraction form
    20,073.58/27,700.75 = 11,121.22/x
  3. Step 3: Cross multiply
    20,073.58x = 27,700.75 × 11,121.22
  4. Step 4: Simplify right side
    20,073.58x = 308,066,134.92
  5. Step 5: Solve for x
    x = 308,066,134.92/20,073.58
  6. Step 6: Final answer
    x = 15,346.85

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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.