Home / 20,156.82-27,817.37-11,204.48

Finding the Fourth Proportional to 20,156.82, 27,817.37 and 11,204.48

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Solution

The fourth proportional to 20,156.82, 27,817.37 and 11,204.48 is: 15,462.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156.82 : 27,817.37 = 11,204.48 : x
  2. Step 2: Convert to fraction form
    20,156.82/27,817.37 = 11,204.48/x
  3. Step 3: Cross multiply
    20,156.82x = 27,817.37 × 11,204.48
  4. Step 4: Simplify right side
    20,156.82x = 311,679,033.37
  5. Step 5: Solve for x
    x = 311,679,033.37/20,156.82
  6. Step 6: Final answer
    x = 15,462.70

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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.