Home / 21,846.93-30,147.87-12,286.56

Finding the Fourth Proportional to 21,846.93, 30,147.87 and 12,286.56

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Solution

The fourth proportional to 21,846.93, 30,147.87 and 12,286.56 is: 16,954.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,846.93 : 30,147.87 = 12,286.56 : x
  2. Step 2: Convert to fraction form
    21,846.93/30,147.87 = 12,286.56/x
  3. Step 3: Cross multiply
    21,846.93x = 30,147.87 × 12,286.56
  4. Step 4: Simplify right side
    21,846.93x = 370,413,613.63
  5. Step 5: Solve for x
    x = 370,413,613.63/21,846.93
  6. Step 6: Final answer
    x = 16,954.95

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1.5x scale

Why These Related Problems?

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