Home / 40,511.44-60,788.50-20,790

Finding the Fourth Proportional to 40,511.44, 60,788.50 and 20,790

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Solution

The fourth proportional to 40,511.44, 60,788.50 and 20,790 is: 31,195.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,511.44 : 60,788.50 = 20,790 : x
  2. Step 2: Convert to fraction form
    40,511.44/60,788.50 = 20,790/x
  3. Step 3: Cross multiply
    40,511.44x = 60,788.50 × 20,790
  4. Step 4: Simplify right side
    40,511.44x = 1,263,792,915
  5. Step 5: Solve for x
    x = 1,263,792,915/40,511.44
  6. Step 6: Final answer
    x = 31,195.95

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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.