Home / 21,997.27-30,353.33-12,438.46

Finding the Fourth Proportional to 21,997.27, 30,353.33 and 12,438.46

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Solution

The fourth proportional to 21,997.27, 30,353.33 and 12,438.46 is: 17,163.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,997.27 : 30,353.33 = 12,438.46 : x
  2. Step 2: Convert to fraction form
    21,997.27/30,353.33 = 12,438.46/x
  3. Step 3: Cross multiply
    21,997.27x = 30,353.33 × 12,438.46
  4. Step 4: Simplify right side
    21,997.27x = 377,548,750.11
  5. Step 5: Solve for x
    x = 377,548,750.11/21,997.27
  6. Step 6: Final answer
    x = 17,163.44

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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.