Home / 39,194.91-54,089.26-21,289.91

Finding the Fourth Proportional to 39,194.91, 54,089.26 and 21,289.91

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Solution

The fourth proportional to 39,194.91, 54,089.26 and 21,289.91 is: 29,380.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,194.91 : 54,089.26 = 21,289.91 : x
  2. Step 2: Convert to fraction form
    39,194.91/54,089.26 = 21,289.91/x
  3. Step 3: Cross multiply
    39,194.91x = 54,089.26 × 21,289.91
  4. Step 4: Simplify right side
    39,194.91x = 1,151,555,580.13
  5. Step 5: Solve for x
    x = 1,151,555,580.13/39,194.91
  6. Step 6: Final answer
    x = 29,380.23

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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.