Home / 40,086.36-60,128.91-13,791.33

Finding the Fourth Proportional to 40,086.36, 60,128.91 and 13,791.33

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Solution

The fourth proportional to 40,086.36, 60,128.91 and 13,791.33 is: 20,686.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,086.36 : 60,128.91 = 13,791.33 : x
  2. Step 2: Convert to fraction form
    40,086.36/60,128.91 = 13,791.33/x
  3. Step 3: Cross multiply
    40,086.36x = 60,128.91 × 13,791.33
  4. Step 4: Simplify right side
    40,086.36x = 829,257,640.35
  5. Step 5: Solve for x
    x = 829,257,640.35/40,086.36
  6. Step 6: Final answer
    x = 20,686.78

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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.