Home / 16,821.66-23,045.78-16,191.08

Finding the Fourth Proportional to 16,821.66, 23,045.78 and 16,191.08

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Solution

The fourth proportional to 16,821.66, 23,045.78 and 16,191.08 is: 22,181.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,821.66 : 23,045.78 = 16,191.08 : x
  2. Step 2: Convert to fraction form
    16,821.66/23,045.78 = 16,191.08/x
  3. Step 3: Cross multiply
    16,821.66x = 23,045.78 × 16,191.08
  4. Step 4: Simplify right side
    16,821.66x = 373,136,067.64
  5. Step 5: Solve for x
    x = 373,136,067.64/16,821.66
  6. Step 6: Final answer
    x = 22,181.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.