Home / 20,212.24-27,690.89-19,454.68

Finding the Fourth Proportional to 20,212.24, 27,690.89 and 19,454.68

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Solution

The fourth proportional to 20,212.24, 27,690.89 and 19,454.68 is: 26,653.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,212.24 : 27,690.89 = 19,454.68 : x
  2. Step 2: Convert to fraction form
    20,212.24/27,690.89 = 19,454.68/x
  3. Step 3: Cross multiply
    20,212.24x = 27,690.89 × 19,454.68
  4. Step 4: Simplify right side
    20,212.24x = 538,717,403.87
  5. Step 5: Solve for x
    x = 538,717,403.87/20,212.24
  6. Step 6: Final answer
    x = 26,653.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.