Home / 22,021.55-30,390.26-11,950.41

Finding the Fourth Proportional to 22,021.55, 30,390.26 and 11,950.41

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Solution

The fourth proportional to 22,021.55, 30,390.26 and 11,950.41 is: 16,491.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,021.55 : 30,390.26 = 11,950.41 : x
  2. Step 2: Convert to fraction form
    22,021.55/30,390.26 = 11,950.41/x
  3. Step 3: Cross multiply
    22,021.55x = 30,390.26 × 11,950.41
  4. Step 4: Simplify right side
    22,021.55x = 363,176,096.88
  5. Step 5: Solve for x
    x = 363,176,096.88/22,021.55
  6. Step 6: Final answer
    x = 16,491.85

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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.