Home / 19,771.21-29,661.81-6,623.83

Finding the Fourth Proportional to 19,771.21, 29,661.81 and 6,623.83

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Solution

The fourth proportional to 19,771.21, 29,661.81 and 6,623.83 is: 9,937.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,771.21 : 29,661.81 = 6,623.83 : x
  2. Step 2: Convert to fraction form
    19,771.21/29,661.81 = 6,623.83/x
  3. Step 3: Cross multiply
    19,771.21x = 29,661.81 × 6,623.83
  4. Step 4: Simplify right side
    19,771.21x = 196,474,786.93
  5. Step 5: Solve for x
    x = 196,474,786.93/19,771.21
  6. Step 6: Final answer
    x = 9,937.42

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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.