Home / 20,127.34-27,777.04-11,629.84

Finding the Fourth Proportional to 20,127.34, 27,777.04 and 11,629.84

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Solution

The fourth proportional to 20,127.34, 27,777.04 and 11,629.84 is: 16,049.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,127.34 : 27,777.04 = 11,629.84 : x
  2. Step 2: Convert to fraction form
    20,127.34/27,777.04 = 11,629.84/x
  3. Step 3: Cross multiply
    20,127.34x = 27,777.04 × 11,629.84
  4. Step 4: Simplify right side
    20,127.34x = 323,042,530.87
  5. Step 5: Solve for x
    x = 323,042,530.87/20,127.34
  6. Step 6: Final answer
    x = 16,049.94

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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.