Home / 20,285.28-27,993.13-11,086.46

Finding the Fourth Proportional to 20,285.28, 27,993.13 and 11,086.46

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Solution

The fourth proportional to 20,285.28, 27,993.13 and 11,086.46 is: 15,299.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,285.28 : 27,993.13 = 11,086.46 : x
  2. Step 2: Convert to fraction form
    20,285.28/27,993.13 = 11,086.46/x
  3. Step 3: Cross multiply
    20,285.28x = 27,993.13 × 11,086.46
  4. Step 4: Simplify right side
    20,285.28x = 310,344,732.04
  5. Step 5: Solve for x
    x = 310,344,732.04/20,285.28
  6. Step 6: Final answer
    x = 15,299.01

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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.