Home / 19,230.39-28,845.57-5,379.39

Finding the Fourth Proportional to 19,230.39, 28,845.57 and 5,379.39

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Solution

The fourth proportional to 19,230.39, 28,845.57 and 5,379.39 is: 8,069.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,230.39 : 28,845.57 = 5,379.39 : x
  2. Step 2: Convert to fraction form
    19,230.39/28,845.57 = 5,379.39/x
  3. Step 3: Cross multiply
    19,230.39x = 28,845.57 × 5,379.39
  4. Step 4: Simplify right side
    19,230.39x = 155,171,570.80
  5. Step 5: Solve for x
    x = 155,171,570.80/19,230.39
  6. Step 6: Final answer
    x = 8,069.08

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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.