Home / 20,049.10-27,667.56-11,986.46

Finding the Fourth Proportional to 20,049.10, 27,667.56 and 11,986.46

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Solution

The fourth proportional to 20,049.10, 27,667.56 and 11,986.46 is: 16,541.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,049.10 : 27,667.56 = 11,986.46 : x
  2. Step 2: Convert to fraction form
    20,049.10/27,667.56 = 11,986.46/x
  3. Step 3: Cross multiply
    20,049.10x = 27,667.56 × 11,986.46
  4. Step 4: Simplify right side
    20,049.10x = 331,636,101.24
  5. Step 5: Solve for x
    x = 331,636,101.24/20,049.10
  6. Step 6: Final answer
    x = 16,541.20

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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.