Home / 28,099.77-42,169.68-13,311.96

Finding the Fourth Proportional to 28,099.77, 42,169.68 and 13,311.96

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Solution

The fourth proportional to 28,099.77, 42,169.68 and 13,311.96 is: 19,977.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,099.77 : 42,169.68 = 13,311.96 : x
  2. Step 2: Convert to fraction form
    28,099.77/42,169.68 = 13,311.96/x
  3. Step 3: Cross multiply
    28,099.77x = 42,169.68 × 13,311.96
  4. Step 4: Simplify right side
    28,099.77x = 561,361,093.37
  5. Step 5: Solve for x
    x = 561,361,093.37/28,099.77
  6. Step 6: Final answer
    x = 19,977.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.