Home / 21,156.44-29,129.40-17,963.42

Finding the Fourth Proportional to 21,156.44, 29,129.40 and 17,963.42

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Solution

The fourth proportional to 21,156.44, 29,129.40 and 17,963.42 is: 24,733.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,156.44 : 29,129.40 = 17,963.42 : x
  2. Step 2: Convert to fraction form
    21,156.44/29,129.40 = 17,963.42/x
  3. Step 3: Cross multiply
    21,156.44x = 29,129.40 × 17,963.42
  4. Step 4: Simplify right side
    21,156.44x = 523,263,500.90
  5. Step 5: Solve for x
    x = 523,263,500.90/21,156.44
  6. Step 6: Final answer
    x = 24,733.07

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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.