Home / 21,252.27-29,329.22-12,300.15

Finding the Fourth Proportional to 21,252.27, 29,329.22 and 12,300.15

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Solution

The fourth proportional to 21,252.27, 29,329.22 and 12,300.15 is: 16,974.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,252.27 : 29,329.22 = 12,300.15 : x
  2. Step 2: Convert to fraction form
    21,252.27/29,329.22 = 12,300.15/x
  3. Step 3: Cross multiply
    21,252.27x = 29,329.22 × 12,300.15
  4. Step 4: Simplify right side
    21,252.27x = 360,753,743.88
  5. Step 5: Solve for x
    x = 360,753,743.88/21,252.27
  6. Step 6: Final answer
    x = 16,974.83

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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.