Home / 21,189.23-29,241.05-11,629.26

Finding the Fourth Proportional to 21,189.23, 29,241.05 and 11,629.26

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Solution

The fourth proportional to 21,189.23, 29,241.05 and 11,629.26 is: 16,048.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,189.23 : 29,241.05 = 11,629.26 : x
  2. Step 2: Convert to fraction form
    21,189.23/29,241.05 = 11,629.26/x
  3. Step 3: Cross multiply
    21,189.23x = 29,241.05 × 11,629.26
  4. Step 4: Simplify right side
    21,189.23x = 340,051,714.98
  5. Step 5: Solve for x
    x = 340,051,714.98/21,189.23
  6. Step 6: Final answer
    x = 16,048.33

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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.