Home / 20,286.68-27,994.02-11,333.48

Finding the Fourth Proportional to 20,286.68, 27,994.02 and 11,333.48

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Solution

The fourth proportional to 20,286.68, 27,994.02 and 11,333.48 is: 15,639.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,286.68 : 27,994.02 = 11,333.48 : x
  2. Step 2: Convert to fraction form
    20,286.68/27,994.02 = 11,333.48/x
  3. Step 3: Cross multiply
    20,286.68x = 27,994.02 × 11,333.48
  4. Step 4: Simplify right side
    20,286.68x = 317,269,665.79
  5. Step 5: Solve for x
    x = 317,269,665.79/20,286.68
  6. Step 6: Final answer
    x = 15,639.31

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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.