Home / 20,084.11-27,715.74-11,131.58

Finding the Fourth Proportional to 20,084.11, 27,715.74 and 11,131.58

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Solution

The fourth proportional to 20,084.11, 27,715.74 and 11,131.58 is: 15,361.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,084.11 : 27,715.74 = 11,131.58 : x
  2. Step 2: Convert to fraction form
    20,084.11/27,715.74 = 11,131.58/x
  3. Step 3: Cross multiply
    20,084.11x = 27,715.74 × 11,131.58
  4. Step 4: Simplify right side
    20,084.11x = 308,519,977.07
  5. Step 5: Solve for x
    x = 308,519,977.07/20,084.11
  6. Step 6: Final answer
    x = 15,361.40

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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.