Home / 39,608.90-54,639.86-26,857.78

Finding the Fourth Proportional to 39,608.90, 54,639.86 and 26,857.78

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Solution

The fourth proportional to 39,608.90, 54,639.86 and 26,857.78 is: 37,049.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,608.90 : 54,639.86 = 26,857.78 : x
  2. Step 2: Convert to fraction form
    39,608.90/54,639.86 = 26,857.78/x
  3. Step 3: Cross multiply
    39,608.90x = 54,639.86 × 26,857.78
  4. Step 4: Simplify right side
    39,608.90x = 1,467,505,339.11
  5. Step 5: Solve for x
    x = 1,467,505,339.11/39,608.90
  6. Step 6: Final answer
    x = 37,049.89

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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.