Home / 15,286.80-22,900.44-13,635.60

Finding the Fourth Proportional to 15,286.80, 22,900.44 and 13,635.60

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Solution

The fourth proportional to 15,286.80, 22,900.44 and 13,635.60 is: 20,426.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,286.80 : 22,900.44 = 13,635.60 : x
  2. Step 2: Convert to fraction form
    15,286.80/22,900.44 = 13,635.60/x
  3. Step 3: Cross multiply
    15,286.80x = 22,900.44 × 13,635.60
  4. Step 4: Simplify right side
    15,286.80x = 312,261,239.66
  5. Step 5: Solve for x
    x = 312,261,239.66/15,286.80
  6. Step 6: Final answer
    x = 20,426.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.