Home / 21,677.32-29,914.90-12,245.96

Finding the Fourth Proportional to 21,677.32, 29,914.90 and 12,245.96

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Solution

The fourth proportional to 21,677.32, 29,914.90 and 12,245.96 is: 16,899.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,677.32 : 29,914.90 = 12,245.96 : x
  2. Step 2: Convert to fraction form
    21,677.32/29,914.90 = 12,245.96/x
  3. Step 3: Cross multiply
    21,677.32x = 29,914.90 × 12,245.96
  4. Step 4: Simplify right side
    21,677.32x = 366,336,668.80
  5. Step 5: Solve for x
    x = 366,336,668.80/21,677.32
  6. Step 6: Final answer
    x = 16,899.54

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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.