Home / 20,270.76-27,992.90-19,166.33

Finding the Fourth Proportional to 20,270.76, 27,992.90 and 19,166.33

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Solution

The fourth proportional to 20,270.76, 27,992.90 and 19,166.33 is: 26,467.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,270.76 : 27,992.90 = 19,166.33 : x
  2. Step 2: Convert to fraction form
    20,270.76/27,992.90 = 19,166.33/x
  3. Step 3: Cross multiply
    20,270.76x = 27,992.90 × 19,166.33
  4. Step 4: Simplify right side
    20,270.76x = 536,520,923.26
  5. Step 5: Solve for x
    x = 536,520,923.26/20,270.76
  6. Step 6: Final answer
    x = 26,467.73

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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.