Home / 21,629.16-29,845.53-12,674.61

Finding the Fourth Proportional to 21,629.16, 29,845.53 and 12,674.61

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Solution

The fourth proportional to 21,629.16, 29,845.53 and 12,674.61 is: 17,489.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,629.16 : 29,845.53 = 12,674.61 : x
  2. Step 2: Convert to fraction form
    21,629.16/29,845.53 = 12,674.61/x
  3. Step 3: Cross multiply
    21,629.16x = 29,845.53 × 12,674.61
  4. Step 4: Simplify right side
    21,629.16x = 378,280,452.99
  5. Step 5: Solve for x
    x = 378,280,452.99/21,629.16
  6. Step 6: Final answer
    x = 17,489.37

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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.