Home / 20,792.69-28,692.57-11,361.26

Finding the Fourth Proportional to 20,792.69, 28,692.57 and 11,361.26

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Solution

The fourth proportional to 20,792.69, 28,692.57 and 11,361.26 is: 15,677.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,792.69 : 28,692.57 = 11,361.26 : x
  2. Step 2: Convert to fraction form
    20,792.69/28,692.57 = 11,361.26/x
  3. Step 3: Cross multiply
    20,792.69x = 28,692.57 × 11,361.26
  4. Step 4: Simplify right side
    20,792.69x = 325,983,747.84
  5. Step 5: Solve for x
    x = 325,983,747.84/20,792.69
  6. Step 6: Final answer
    x = 15,677.81

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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.