Home / 21,149.34-29,186.38-11,589.04

Finding the Fourth Proportional to 21,149.34, 29,186.38 and 11,589.04

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Solution

The fourth proportional to 21,149.34, 29,186.38 and 11,589.04 is: 15,993.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,149.34 : 29,186.38 = 11,589.04 : x
  2. Step 2: Convert to fraction form
    21,149.34/29,186.38 = 11,589.04/x
  3. Step 3: Cross multiply
    21,149.34x = 29,186.38 × 11,589.04
  4. Step 4: Simplify right side
    21,149.34x = 338,242,125.28
  5. Step 5: Solve for x
    x = 338,242,125.28/21,149.34
  6. Step 6: Final answer
    x = 15,993.03

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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.