Home / 28,855.21-39,822.19-16,110.90

Finding the Fourth Proportional to 28,855.21, 39,822.19 and 16,110.90

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Solution

The fourth proportional to 28,855.21, 39,822.19 and 16,110.90 is: 22,234.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,855.21 : 39,822.19 = 16,110.90 : x
  2. Step 2: Convert to fraction form
    28,855.21/39,822.19 = 16,110.90/x
  3. Step 3: Cross multiply
    28,855.21x = 39,822.19 × 16,110.90
  4. Step 4: Simplify right side
    28,855.21x = 641,571,121.76
  5. Step 5: Solve for x
    x = 641,571,121.76/28,855.21
  6. Step 6: Final answer
    x = 22,234.16

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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.