Home / 27,400.80-41,117.40-19,986.60

Finding the Fourth Proportional to 27,400.80, 41,117.40 and 19,986.60

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Solution

The fourth proportional to 27,400.80, 41,117.40 and 19,986.60 is: 29,991.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,400.80 : 41,117.40 = 19,986.60 : x
  2. Step 2: Convert to fraction form
    27,400.80/41,117.40 = 19,986.60/x
  3. Step 3: Cross multiply
    27,400.80x = 41,117.40 × 19,986.60
  4. Step 4: Simplify right side
    27,400.80x = 821,797,026.84
  5. Step 5: Solve for x
    x = 821,797,026.84/27,400.80
  6. Step 6: Final answer
    x = 29,991.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.