Home / 21,921.67-30,261.97-12,845.77

Finding the Fourth Proportional to 21,921.67, 30,261.97 and 12,845.77

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Solution

The fourth proportional to 21,921.67, 30,261.97 and 12,845.77 is: 17,733.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,921.67 : 30,261.97 = 12,845.77 : x
  2. Step 2: Convert to fraction form
    21,921.67/30,261.97 = 12,845.77/x
  3. Step 3: Cross multiply
    21,921.67x = 30,261.97 × 12,845.77
  4. Step 4: Simplify right side
    21,921.67x = 388,738,306.37
  5. Step 5: Solve for x
    x = 388,738,306.37/21,921.67
  6. Step 6: Final answer
    x = 17,733.06

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.