Home / 20,874.09-28,806.08-11,442.63

Finding the Fourth Proportional to 20,874.09, 28,806.08 and 11,442.63

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Solution

The fourth proportional to 20,874.09, 28,806.08 and 11,442.63 is: 15,790.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,874.09 : 28,806.08 = 11,442.63 : x
  2. Step 2: Convert to fraction form
    20,874.09/28,806.08 = 11,442.63/x
  3. Step 3: Cross multiply
    20,874.09x = 28,806.08 × 11,442.63
  4. Step 4: Simplify right side
    20,874.09x = 329,617,257.98
  5. Step 5: Solve for x
    x = 329,617,257.98/20,874.09
  6. Step 6: Final answer
    x = 15,790.74

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.