Home / 26,120.14-39,180.20-7,400.33

Finding the Fourth Proportional to 26,120.14, 39,180.20 and 7,400.33

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Solution

The fourth proportional to 26,120.14, 39,180.20 and 7,400.33 is: 11,100.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,120.14 : 39,180.20 = 7,400.33 : x
  2. Step 2: Convert to fraction form
    26,120.14/39,180.20 = 7,400.33/x
  3. Step 3: Cross multiply
    26,120.14x = 39,180.20 × 7,400.33
  4. Step 4: Simplify right side
    26,120.14x = 289,946,323.49
  5. Step 5: Solve for x
    x = 289,946,323.49/26,120.14
  6. Step 6: Final answer
    x = 11,100.49

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Half scale
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Double scale
Find fourth proportional to 26,121.14, 39,181.69 and 7,401.33
Similar ratio
Find fourth proportional to 39,180.21, 58,770.29 and 11,100.49
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.