Home / 21,067.48-31,367.22-20,773.22

Finding the Fourth Proportional to 21,067.48, 31,367.22 and 20,773.22

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Solution

The fourth proportional to 21,067.48, 31,367.22 and 20,773.22 is: 30,929.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,067.48 : 31,367.22 = 20,773.22 : x
  2. Step 2: Convert to fraction form
    21,067.48/31,367.22 = 20,773.22/x
  3. Step 3: Cross multiply
    21,067.48x = 31,367.22 × 20,773.22
  4. Step 4: Simplify right side
    21,067.48x = 651,598,190.61
  5. Step 5: Solve for x
    x = 651,598,190.61/21,067.48
  6. Step 6: Final answer
    x = 30,929.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.