Home / 29,858.20-41,200.86-20,440.60

Finding the Fourth Proportional to 29,858.20, 41,200.86 and 20,440.60

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Solution

The fourth proportional to 29,858.20, 41,200.86 and 20,440.60 is: 28,205.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,858.20 : 41,200.86 = 20,440.60 : x
  2. Step 2: Convert to fraction form
    29,858.20/41,200.86 = 20,440.60/x
  3. Step 3: Cross multiply
    29,858.20x = 41,200.86 × 20,440.60
  4. Step 4: Simplify right side
    29,858.20x = 842,170,298.92
  5. Step 5: Solve for x
    x = 842,170,298.92/29,858.20
  6. Step 6: Final answer
    x = 28,205.66

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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.