Home / 39,558.78-54,588.87-21,650.22

Finding the Fourth Proportional to 39,558.78, 54,588.87 and 21,650.22

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Solution

The fourth proportional to 39,558.78, 54,588.87 and 21,650.22 is: 29,876.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,558.78 : 54,588.87 = 21,650.22 : x
  2. Step 2: Convert to fraction form
    39,558.78/54,588.87 = 21,650.22/x
  3. Step 3: Cross multiply
    39,558.78x = 54,588.87 × 21,650.22
  4. Step 4: Simplify right side
    39,558.78x = 1,181,861,045.05
  5. Step 5: Solve for x
    x = 1,181,861,045.05/39,558.78
  6. Step 6: Final answer
    x = 29,876.07

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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.