Home / 21,629.03-29,850.37-12,684.04

Finding the Fourth Proportional to 21,629.03, 29,850.37 and 12,684.04

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Solution

The fourth proportional to 21,629.03, 29,850.37 and 12,684.04 is: 17,505.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,629.03 : 29,850.37 = 12,684.04 : x
  2. Step 2: Convert to fraction form
    21,629.03/29,850.37 = 12,684.04/x
  3. Step 3: Cross multiply
    21,629.03x = 29,850.37 × 12,684.04
  4. Step 4: Simplify right side
    21,629.03x = 378,623,420.01
  5. Step 5: Solve for x
    x = 378,623,420.01/21,629.03
  6. Step 6: Final answer
    x = 17,505.34

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1.5x scale

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.