Home / 39,028.22-53,858.52-21,122.84

Finding the Fourth Proportional to 39,028.22, 53,858.52 and 21,122.84

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Solution

The fourth proportional to 39,028.22, 53,858.52 and 21,122.84 is: 29,149.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,028.22 : 53,858.52 = 21,122.84 : x
  2. Step 2: Convert to fraction form
    39,028.22/53,858.52 = 21,122.84/x
  3. Step 3: Cross multiply
    39,028.22x = 53,858.52 × 21,122.84
  4. Step 4: Simplify right side
    39,028.22x = 1,137,644,900.60
  5. Step 5: Solve for x
    x = 1,137,644,900.60/39,028.22
  6. Step 6: Final answer
    x = 29,149.29

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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.