Home / 28,161.75-42,236.50-8,435.01

Finding the Fourth Proportional to 28,161.75, 42,236.50 and 8,435.01

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Solution

The fourth proportional to 28,161.75, 42,236.50 and 8,435.01 is: 12,650.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,161.75 : 42,236.50 = 8,435.01 : x
  2. Step 2: Convert to fraction form
    28,161.75/42,236.50 = 8,435.01/x
  3. Step 3: Cross multiply
    28,161.75x = 42,236.50 × 8,435.01
  4. Step 4: Simplify right side
    28,161.75x = 356,265,299.87
  5. Step 5: Solve for x
    x = 356,265,299.87/28,161.75
  6. Step 6: Final answer
    x = 12,650.68

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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.