Home / 22,021.93-30,390.15-11,950.66

Finding the Fourth Proportional to 22,021.93, 30,390.15 and 11,950.66

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Solution

The fourth proportional to 22,021.93, 30,390.15 and 11,950.66 is: 16,491.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,021.93 : 30,390.15 = 11,950.66 : x
  2. Step 2: Convert to fraction form
    22,021.93/30,390.15 = 11,950.66/x
  3. Step 3: Cross multiply
    22,021.93x = 30,390.15 × 11,950.66
  4. Step 4: Simplify right side
    22,021.93x = 363,182,350.00
  5. Step 5: Solve for x
    x = 363,182,350.00/22,021.93
  6. Step 6: Final answer
    x = 16,491.85

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Half scale
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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.