Home / 38,178.10-52,684.22-21,183.09

Finding the Fourth Proportional to 38,178.10, 52,684.22 and 21,183.09

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Solution

The fourth proportional to 38,178.10, 52,684.22 and 21,183.09 is: 29,231.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,178.10 : 52,684.22 = 21,183.09 : x
  2. Step 2: Convert to fraction form
    38,178.10/52,684.22 = 21,183.09/x
  3. Step 3: Cross multiply
    38,178.10x = 52,684.22 × 21,183.09
  4. Step 4: Simplify right side
    38,178.10x = 1,116,014,573.84
  5. Step 5: Solve for x
    x = 1,116,014,573.84/38,178.10
  6. Step 6: Final answer
    x = 29,231.80

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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.