Home / 20,074.58-27,701.86-11,121.88

Finding the Fourth Proportional to 20,074.58, 27,701.86 and 11,121.88

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Solution

The fourth proportional to 20,074.58, 27,701.86 and 11,121.88 is: 15,347.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,074.58 : 27,701.86 = 11,121.88 : x
  2. Step 2: Convert to fraction form
    20,074.58/27,701.86 = 11,121.88/x
  3. Step 3: Cross multiply
    20,074.58x = 27,701.86 × 11,121.88
  4. Step 4: Simplify right side
    20,074.58x = 308,096,568.58
  5. Step 5: Solve for x
    x = 308,096,568.58/20,074.58
  6. Step 6: Final answer
    x = 15,347.60

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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.