Home / 28,198.89-42,314.22-11,570.60

Finding the Fourth Proportional to 28,198.89, 42,314.22 and 11,570.60

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Solution

The fourth proportional to 28,198.89, 42,314.22 and 11,570.60 is: 17,362.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,198.89 : 42,314.22 = 11,570.60 : x
  2. Step 2: Convert to fraction form
    28,198.89/42,314.22 = 11,570.60/x
  3. Step 3: Cross multiply
    28,198.89x = 42,314.22 × 11,570.60
  4. Step 4: Simplify right side
    28,198.89x = 489,600,795.94
  5. Step 5: Solve for x
    x = 489,600,795.94/28,198.89
  6. Step 6: Final answer
    x = 17,362.42

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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.