Home / 22,379.41-30,884.39-12,308.64

Finding the Fourth Proportional to 22,379.41, 30,884.39 and 12,308.64

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Solution

The fourth proportional to 22,379.41, 30,884.39 and 12,308.64 is: 16,986.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,379.41 : 30,884.39 = 12,308.64 : x
  2. Step 2: Convert to fraction form
    22,379.41/30,884.39 = 12,308.64/x
  3. Step 3: Cross multiply
    22,379.41x = 30,884.39 × 12,308.64
  4. Step 4: Simplify right side
    22,379.41x = 380,144,706.93
  5. Step 5: Solve for x
    x = 380,144,706.93/22,379.41
  6. Step 6: Final answer
    x = 16,986.36

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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.