Home / 20,286.60-27,888.03-17,443.56

Finding the Fourth Proportional to 20,286.60, 27,888.03 and 17,443.56

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Solution

The fourth proportional to 20,286.60, 27,888.03 and 17,443.56 is: 23,979.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,286.60 : 27,888.03 = 17,443.56 : x
  2. Step 2: Convert to fraction form
    20,286.60/27,888.03 = 17,443.56/x
  3. Step 3: Cross multiply
    20,286.60x = 27,888.03 × 17,443.56
  4. Step 4: Simplify right side
    20,286.60x = 486,466,524.59
  5. Step 5: Solve for x
    x = 486,466,524.59/20,286.60
  6. Step 6: Final answer
    x = 23,979.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.