Home / 14,321.88-21,480.36-3,792.02

Finding the Fourth Proportional to 14,321.88, 21,480.36 and 3,792.02

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Solution

The fourth proportional to 14,321.88, 21,480.36 and 3,792.02 is: 5,687.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,321.88 : 21,480.36 = 3,792.02 : x
  2. Step 2: Convert to fraction form
    14,321.88/21,480.36 = 3,792.02/x
  3. Step 3: Cross multiply
    14,321.88x = 21,480.36 × 3,792.02
  4. Step 4: Simplify right side
    14,321.88x = 81,453,833.11
  5. Step 5: Solve for x
    x = 81,453,833.11/14,321.88
  6. Step 6: Final answer
    x = 5,687.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.