Home / 21,975.82-30,326.69-11,904.23

Finding the Fourth Proportional to 21,975.82, 30,326.69 and 11,904.23

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Solution

The fourth proportional to 21,975.82, 30,326.69 and 11,904.23 is: 16,427.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,975.82 : 30,326.69 = 11,904.23 : x
  2. Step 2: Convert to fraction form
    21,975.82/30,326.69 = 11,904.23/x
  3. Step 3: Cross multiply
    21,975.82x = 30,326.69 × 11,904.23
  4. Step 4: Simplify right side
    21,975.82x = 361,015,998.48
  5. Step 5: Solve for x
    x = 361,015,998.48/21,975.82
  6. Step 6: Final answer
    x = 16,427.88

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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.