Home / 39,198.09-54,093.54-21,293.40

Finding the Fourth Proportional to 39,198.09, 54,093.54 and 21,293.40

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Solution

The fourth proportional to 39,198.09, 54,093.54 and 21,293.40 is: 29,384.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,198.09 : 54,093.54 = 21,293.40 : x
  2. Step 2: Convert to fraction form
    39,198.09/54,093.54 = 21,293.40/x
  3. Step 3: Cross multiply
    39,198.09x = 54,093.54 × 21,293.40
  4. Step 4: Simplify right side
    39,198.09x = 1,151,835,384.64
  5. Step 5: Solve for x
    x = 1,151,835,384.64/39,198.09
  6. Step 6: Final answer
    x = 29,384.99

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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.