Home / 37,286.75-51,455.72-20,519.75

Finding the Fourth Proportional to 37,286.75, 51,455.72 and 20,519.75

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Solution

The fourth proportional to 37,286.75, 51,455.72 and 20,519.75 is: 28,317.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,286.75 : 51,455.72 = 20,519.75 : x
  2. Step 2: Convert to fraction form
    37,286.75/51,455.72 = 20,519.75/x
  3. Step 3: Cross multiply
    37,286.75x = 51,455.72 × 20,519.75
  4. Step 4: Simplify right side
    37,286.75x = 1,055,858,150.59
  5. Step 5: Solve for x
    x = 1,055,858,150.59/37,286.75
  6. Step 6: Final answer
    x = 28,317.25

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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.