Home / 19,827.11-29,682.38-12,786.35

Finding the Fourth Proportional to 19,827.11, 29,682.38 and 12,786.35

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Solution

The fourth proportional to 19,827.11, 29,682.38 and 12,786.35 is: 19,141.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,827.11 : 29,682.38 = 12,786.35 : x
  2. Step 2: Convert to fraction form
    19,827.11/29,682.38 = 12,786.35/x
  3. Step 3: Cross multiply
    19,827.11x = 29,682.38 × 12,786.35
  4. Step 4: Simplify right side
    19,827.11x = 379,529,183.07
  5. Step 5: Solve for x
    x = 379,529,183.07/19,827.11
  6. Step 6: Final answer
    x = 19,141.93

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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.