Home / 27,787.60-41,616.60-18,974.80

Finding the Fourth Proportional to 27,787.60, 41,616.60 and 18,974.80

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Solution

The fourth proportional to 27,787.60, 41,616.60 and 18,974.80 is: 28,417.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,787.60 : 41,616.60 = 18,974.80 : x
  2. Step 2: Convert to fraction form
    27,787.60/41,616.60 = 18,974.80/x
  3. Step 3: Cross multiply
    27,787.60x = 41,616.60 × 18,974.80
  4. Step 4: Simplify right side
    27,787.60x = 789,666,661.68
  5. Step 5: Solve for x
    x = 789,666,661.68/27,787.60
  6. Step 6: Final answer
    x = 28,417.95

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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.