Home / 21,908.26-30,169.69-19,035.64

Finding the Fourth Proportional to 21,908.26, 30,169.69 and 19,035.64

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Solution

The fourth proportional to 21,908.26, 30,169.69 and 19,035.64 is: 26,213.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,908.26 : 30,169.69 = 19,035.64 : x
  2. Step 2: Convert to fraction form
    21,908.26/30,169.69 = 19,035.64/x
  3. Step 3: Cross multiply
    21,908.26x = 30,169.69 × 19,035.64
  4. Step 4: Simplify right side
    21,908.26x = 574,299,357.75
  5. Step 5: Solve for x
    x = 574,299,357.75/21,908.26
  6. Step 6: Final answer
    x = 26,213.83

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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.