Home / 39,137.88-53,989.58-27,811.96

Finding the Fourth Proportional to 39,137.88, 53,989.58 and 27,811.96

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Solution

The fourth proportional to 39,137.88, 53,989.58 and 27,811.96 is: 38,365.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,137.88 : 53,989.58 = 27,811.96 : x
  2. Step 2: Convert to fraction form
    39,137.88/53,989.58 = 27,811.96/x
  3. Step 3: Cross multiply
    39,137.88x = 53,989.58 × 27,811.96
  4. Step 4: Simplify right side
    39,137.88x = 1,501,555,973.93
  5. Step 5: Solve for x
    x = 1,501,555,973.93/39,137.88
  6. Step 6: Final answer
    x = 38,365.79

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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.