Home / 20,084.41-27,715.72-11,131.69

Finding the Fourth Proportional to 20,084.41, 27,715.72 and 11,131.69

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Solution

The fourth proportional to 20,084.41, 27,715.72 and 11,131.69 is: 15,361.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,084.41 : 27,715.72 = 11,131.69 : x
  2. Step 2: Convert to fraction form
    20,084.41/27,715.72 = 11,131.69/x
  3. Step 3: Cross multiply
    20,084.41x = 27,715.72 × 11,131.69
  4. Step 4: Simplify right side
    20,084.41x = 308,522,803.17
  5. Step 5: Solve for x
    x = 308,522,803.17/20,084.41
  6. Step 6: Final answer
    x = 15,361.31

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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.