Home / 30,228.12-41,716.19-16,800.68

Finding the Fourth Proportional to 30,228.12, 41,716.19 and 16,800.68

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Solution

The fourth proportional to 30,228.12, 41,716.19 and 16,800.68 is: 23,185.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,228.12 : 41,716.19 = 16,800.68 : x
  2. Step 2: Convert to fraction form
    30,228.12/41,716.19 = 16,800.68/x
  3. Step 3: Cross multiply
    30,228.12x = 41,716.19 × 16,800.68
  4. Step 4: Simplify right side
    30,228.12x = 700,860,505.30
  5. Step 5: Solve for x
    x = 700,860,505.30/30,228.12
  6. Step 6: Final answer
    x = 23,185.71

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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.