Home / 21,997.88-30,357.30-11,926.34

Finding the Fourth Proportional to 21,997.88, 30,357.30 and 11,926.34

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Solution

The fourth proportional to 21,997.88, 30,357.30 and 11,926.34 is: 16,458.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,997.88 : 30,357.30 = 11,926.34 : x
  2. Step 2: Convert to fraction form
    21,997.88/30,357.30 = 11,926.34/x
  3. Step 3: Cross multiply
    21,997.88x = 30,357.30 × 11,926.34
  4. Step 4: Simplify right side
    21,997.88x = 362,051,481.28
  5. Step 5: Solve for x
    x = 362,051,481.28/21,997.88
  6. Step 6: Final answer
    x = 16,458.47

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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.