Home / 20,083.52-27,715.46-11,131.22

Finding the Fourth Proportional to 20,083.52, 27,715.46 and 11,131.22

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Solution

The fourth proportional to 20,083.52, 27,715.46 and 11,131.22 is: 15,361.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,083.52 : 27,715.46 = 11,131.22 : x
  2. Step 2: Convert to fraction form
    20,083.52/27,715.46 = 11,131.22/x
  3. Step 3: Cross multiply
    20,083.52x = 27,715.46 × 11,131.22
  4. Step 4: Simplify right side
    20,083.52x = 308,506,688.43
  5. Step 5: Solve for x
    x = 308,506,688.43/20,083.52
  6. Step 6: Final answer
    x = 15,361.19

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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.