Home / 19,742.67-27,245.30-11,785.23

Finding the Fourth Proportional to 19,742.67, 27,245.30 and 11,785.23

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Solution

The fourth proportional to 19,742.67, 27,245.30 and 11,785.23 is: 16,263.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,742.67 : 27,245.30 = 11,785.23 : x
  2. Step 2: Convert to fraction form
    19,742.67/27,245.30 = 11,785.23/x
  3. Step 3: Cross multiply
    19,742.67x = 27,245.30 × 11,785.23
  4. Step 4: Simplify right side
    19,742.67x = 321,092,067.99
  5. Step 5: Solve for x
    x = 321,092,067.99/19,742.67
  6. Step 6: Final answer
    x = 16,263.86

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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.