Home / 39,194.72-54,089.00-21,289.72

Finding the Fourth Proportional to 39,194.72, 54,089.00 and 21,289.72

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Solution

The fourth proportional to 39,194.72, 54,089.00 and 21,289.72 is: 29,379.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,194.72 : 54,089.00 = 21,289.72 : x
  2. Step 2: Convert to fraction form
    39,194.72/54,089.00 = 21,289.72/x
  3. Step 3: Cross multiply
    39,194.72x = 54,089.00 × 21,289.72
  4. Step 4: Simplify right side
    39,194.72x = 1,151,539,583.08
  5. Step 5: Solve for x
    x = 1,151,539,583.08/39,194.72
  6. Step 6: Final answer
    x = 29,379.97

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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.