Home / 39,183.48-54,072.96-21,278.34

Finding the Fourth Proportional to 39,183.48, 54,072.96 and 21,278.34

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Solution

The fourth proportional to 39,183.48, 54,072.96 and 21,278.34 is: 29,363.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,183.48 : 54,072.96 = 21,278.34 : x
  2. Step 2: Convert to fraction form
    39,183.48/54,072.96 = 21,278.34/x
  3. Step 3: Cross multiply
    39,183.48x = 54,072.96 × 21,278.34
  4. Step 4: Simplify right side
    39,183.48x = 1,150,582,827.69
  5. Step 5: Solve for x
    x = 1,150,582,827.69/39,183.48
  6. Step 6: Final answer
    x = 29,363.98

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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.