Home / 39,198.89-54,095.48-21,294.92

Finding the Fourth Proportional to 39,198.89, 54,095.48 and 21,294.92

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Solution

The fourth proportional to 39,198.89, 54,095.48 and 21,294.92 is: 29,387.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,198.89 : 54,095.48 = 21,294.92 : x
  2. Step 2: Convert to fraction form
    39,198.89/54,095.48 = 21,294.92/x
  3. Step 3: Cross multiply
    39,198.89x = 54,095.48 × 21,294.92
  4. Step 4: Simplify right side
    39,198.89x = 1,151,958,542.01
  5. Step 5: Solve for x
    x = 1,151,958,542.01/39,198.89
  6. Step 6: Final answer
    x = 29,387.53

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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.