Home / 29,195.96-40,290.42-15,767.21

Finding the Fourth Proportional to 29,195.96, 40,290.42 and 15,767.21

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Solution

The fourth proportional to 29,195.96, 40,290.42 and 15,767.21 is: 21,758.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,195.96 : 40,290.42 = 15,767.21 : x
  2. Step 2: Convert to fraction form
    29,195.96/40,290.42 = 15,767.21/x
  3. Step 3: Cross multiply
    29,195.96x = 40,290.42 × 15,767.21
  4. Step 4: Simplify right side
    29,195.96x = 635,267,613.85
  5. Step 5: Solve for x
    x = 635,267,613.85/29,195.96
  6. Step 6: Final answer
    x = 21,758.75

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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.