Home / 21,023.24-29,011.62-11,591.82

Finding the Fourth Proportional to 21,023.24, 29,011.62 and 11,591.82

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Solution

The fourth proportional to 21,023.24, 29,011.62 and 11,591.82 is: 15,996.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,023.24 : 29,011.62 = 11,591.82 : x
  2. Step 2: Convert to fraction form
    21,023.24/29,011.62 = 11,591.82/x
  3. Step 3: Cross multiply
    21,023.24x = 29,011.62 × 11,591.82
  4. Step 4: Simplify right side
    21,023.24x = 336,297,476.95
  5. Step 5: Solve for x
    x = 336,297,476.95/21,023.24
  6. Step 6: Final answer
    x = 15,996.46

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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.