Home / 27,388.39-37,785.87-20,235.55

Finding the Fourth Proportional to 27,388.39, 37,785.87 and 20,235.55

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Solution

The fourth proportional to 27,388.39, 37,785.87 and 20,235.55 is: 27,917.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,388.39 : 37,785.87 = 20,235.55 : x
  2. Step 2: Convert to fraction form
    27,388.39/37,785.87 = 20,235.55/x
  3. Step 3: Cross multiply
    27,388.39x = 37,785.87 × 20,235.55
  4. Step 4: Simplify right side
    27,388.39x = 764,617,861.68
  5. Step 5: Solve for x
    x = 764,617,861.68/27,388.39
  6. Step 6: Final answer
    x = 27,917.59

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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.