Home / 21,223.74-29,289.26-11,664.12

Finding the Fourth Proportional to 21,223.74, 29,289.26 and 11,664.12

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Solution

The fourth proportional to 21,223.74, 29,289.26 and 11,664.12 is: 16,096.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,223.74 : 29,289.26 = 11,664.12 : x
  2. Step 2: Convert to fraction form
    21,223.74/29,289.26 = 11,664.12/x
  3. Step 3: Cross multiply
    21,223.74x = 29,289.26 × 11,664.12
  4. Step 4: Simplify right side
    21,223.74x = 341,633,443.35
  5. Step 5: Solve for x
    x = 341,633,443.35/21,223.74
  6. Step 6: Final answer
    x = 16,096.76

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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.