Home / 39,786.87-54,907.29-21,883.26

Finding the Fourth Proportional to 39,786.87, 54,907.29 and 21,883.26

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Solution

The fourth proportional to 39,786.87, 54,907.29 and 21,883.26 is: 30,199.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,786.87 : 54,907.29 = 21,883.26 : x
  2. Step 2: Convert to fraction form
    39,786.87/54,907.29 = 21,883.26/x
  3. Step 3: Cross multiply
    39,786.87x = 54,907.29 × 21,883.26
  4. Step 4: Simplify right side
    39,786.87x = 1,201,550,502.97
  5. Step 5: Solve for x
    x = 1,201,550,502.97/39,786.87
  6. Step 6: Final answer
    x = 30,199.67

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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.