Home / 21,198.56-29,220.48-16,146.56

Finding the Fourth Proportional to 21,198.56, 29,220.48 and 16,146.56

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Solution

The fourth proportional to 21,198.56, 29,220.48 and 16,146.56 is: 22,256.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,198.56 : 29,220.48 = 16,146.56 : x
  2. Step 2: Convert to fraction form
    21,198.56/29,220.48 = 16,146.56/x
  3. Step 3: Cross multiply
    21,198.56x = 29,220.48 × 16,146.56
  4. Step 4: Simplify right side
    21,198.56x = 471,810,233.55
  5. Step 5: Solve for x
    x = 471,810,233.55/21,198.56
  6. Step 6: Final answer
    x = 22,256.71

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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.