Home / 28,183.93-42,263.43-8,458.70

Finding the Fourth Proportional to 28,183.93, 42,263.43 and 8,458.70

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Solution

The fourth proportional to 28,183.93, 42,263.43 and 8,458.70 is: 12,684.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,183.93 : 42,263.43 = 8,458.70 : x
  2. Step 2: Convert to fraction form
    28,183.93/42,263.43 = 8,458.70/x
  3. Step 3: Cross multiply
    28,183.93x = 42,263.43 × 8,458.70
  4. Step 4: Simplify right side
    28,183.93x = 357,493,675.34
  5. Step 5: Solve for x
    x = 357,493,675.34/28,183.93
  6. Step 6: Final answer
    x = 12,684.31

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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.