Home / 39,197.09-54,092.16-21,292.40

Finding the Fourth Proportional to 39,197.09, 54,092.16 and 21,292.40

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Solution

The fourth proportional to 39,197.09, 54,092.16 and 21,292.40 is: 29,383.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,197.09 : 54,092.16 = 21,292.40 : x
  2. Step 2: Convert to fraction form
    39,197.09/54,092.16 = 21,292.40/x
  3. Step 3: Cross multiply
    39,197.09x = 54,092.16 × 21,292.40
  4. Step 4: Simplify right side
    39,197.09x = 1,151,751,907.58
  5. Step 5: Solve for x
    x = 1,151,751,907.58/39,197.09
  6. Step 6: Final answer
    x = 29,383.61

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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.