Home / 19,785.26-27,303.68-11,171.52

Finding the Fourth Proportional to 19,785.26, 27,303.68 and 11,171.52

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Solution

The fourth proportional to 19,785.26, 27,303.68 and 11,171.52 is: 15,416.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,785.26 : 27,303.68 = 11,171.52 : x
  2. Step 2: Convert to fraction form
    19,785.26/27,303.68 = 11,171.52/x
  3. Step 3: Cross multiply
    19,785.26x = 27,303.68 × 11,171.52
  4. Step 4: Simplify right side
    19,785.26x = 305,023,635.12
  5. Step 5: Solve for x
    x = 305,023,635.12/19,785.26
  6. Step 6: Final answer
    x = 15,416.71

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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.