Home / 21,450.46-29,601.62-12,019.09

Finding the Fourth Proportional to 21,450.46, 29,601.62 and 12,019.09

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Solution

The fourth proportional to 21,450.46, 29,601.62 and 12,019.09 is: 16,586.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,450.46 : 29,601.62 = 12,019.09 : x
  2. Step 2: Convert to fraction form
    21,450.46/29,601.62 = 12,019.09/x
  3. Step 3: Cross multiply
    21,450.46x = 29,601.62 × 12,019.09
  4. Step 4: Simplify right side
    21,450.46x = 355,784,474.83
  5. Step 5: Solve for x
    x = 355,784,474.83/21,450.46
  6. Step 6: Final answer
    x = 16,586.33

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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.