Home / 35,400.09-48,850.11-20,289.54

Finding the Fourth Proportional to 35,400.09, 48,850.11 and 20,289.54

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Solution

The fourth proportional to 35,400.09, 48,850.11 and 20,289.54 is: 27,998.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,400.09 : 48,850.11 = 20,289.54 : x
  2. Step 2: Convert to fraction form
    35,400.09/48,850.11 = 20,289.54/x
  3. Step 3: Cross multiply
    35,400.09x = 48,850.11 × 20,289.54
  4. Step 4: Simplify right side
    35,400.09x = 991,146,260.85
  5. Step 5: Solve for x
    x = 991,146,260.85/35,400.09
  6. Step 6: Final answer
    x = 27,998.41

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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.