Home / 19,772.87-27,286.53-10,820.37

Finding the Fourth Proportional to 19,772.87, 27,286.53 and 10,820.37

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Solution

The fourth proportional to 19,772.87, 27,286.53 and 10,820.37 is: 14,932.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,772.87 : 27,286.53 = 10,820.37 : x
  2. Step 2: Convert to fraction form
    19,772.87/27,286.53 = 10,820.37/x
  3. Step 3: Cross multiply
    19,772.87x = 27,286.53 × 10,820.37
  4. Step 4: Simplify right side
    19,772.87x = 295,250,350.62
  5. Step 5: Solve for x
    x = 295,250,350.62/19,772.87
  6. Step 6: Final answer
    x = 14,932.09

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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.