Home / 39,836.61-59,791.77-20,128.97

Finding the Fourth Proportional to 39,836.61, 59,791.77 and 20,128.97

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Solution

The fourth proportional to 39,836.61, 59,791.77 and 20,128.97 is: 30,212.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,836.61 : 59,791.77 = 20,128.97 : x
  2. Step 2: Convert to fraction form
    39,836.61/59,791.77 = 20,128.97/x
  3. Step 3: Cross multiply
    39,836.61x = 59,791.77 × 20,128.97
  4. Step 4: Simplify right side
    39,836.61x = 1,203,546,894.06
  5. Step 5: Solve for x
    x = 1,203,546,894.06/39,836.61
  6. Step 6: Final answer
    x = 30,212.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.