Home / 21,469.24-29,624.70-11,908.99

Finding the Fourth Proportional to 21,469.24, 29,624.70 and 11,908.99

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Solution

The fourth proportional to 21,469.24, 29,624.70 and 11,908.99 is: 16,432.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,469.24 : 29,624.70 = 11,908.99 : x
  2. Step 2: Convert to fraction form
    21,469.24/29,624.70 = 11,908.99/x
  3. Step 3: Cross multiply
    21,469.24x = 29,624.70 × 11,908.99
  4. Step 4: Simplify right side
    21,469.24x = 352,800,256.05
  5. Step 5: Solve for x
    x = 352,800,256.05/21,469.24
  6. Step 6: Final answer
    x = 16,432.82

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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.