Home / 39,788.26-54,907.77-21,883.54

Finding the Fourth Proportional to 39,788.26, 54,907.77 and 21,883.54

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Solution

The fourth proportional to 39,788.26, 54,907.77 and 21,883.54 is: 30,199.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,788.26 : 54,907.77 = 21,883.54 : x
  2. Step 2: Convert to fraction form
    39,788.26/54,907.77 = 21,883.54/x
  3. Step 3: Cross multiply
    39,788.26x = 54,907.77 × 21,883.54
  4. Step 4: Simplify right side
    39,788.26x = 1,201,576,381.11
  5. Step 5: Solve for x
    x = 1,201,576,381.11/39,788.26
  6. Step 6: Final answer
    x = 30,199.27

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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.