Home / 20,692.75-28,556.65-11,740.63

Finding the Fourth Proportional to 20,692.75, 28,556.65 and 11,740.63

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Solution

The fourth proportional to 20,692.75, 28,556.65 and 11,740.63 is: 16,202.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,692.75 : 28,556.65 = 11,740.63 : x
  2. Step 2: Convert to fraction form
    20,692.75/28,556.65 = 11,740.63/x
  3. Step 3: Cross multiply
    20,692.75x = 28,556.65 × 11,740.63
  4. Step 4: Simplify right side
    20,692.75x = 335,273,061.69
  5. Step 5: Solve for x
    x = 335,273,061.69/20,692.75
  6. Step 6: Final answer
    x = 16,202.44

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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.