Home / 28,369.48-42,559.82-8,379.32

Finding the Fourth Proportional to 28,369.48, 42,559.82 and 8,379.32

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Solution

The fourth proportional to 28,369.48, 42,559.82 and 8,379.32 is: 12,570.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,369.48 : 42,559.82 = 8,379.32 : x
  2. Step 2: Convert to fraction form
    28,369.48/42,559.82 = 8,379.32/x
  3. Step 3: Cross multiply
    28,369.48x = 42,559.82 × 8,379.32
  4. Step 4: Simplify right side
    28,369.48x = 356,622,350.92
  5. Step 5: Solve for x
    x = 356,622,350.92/28,369.48
  6. Step 6: Final answer
    x = 12,570.63

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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.