Home / 33,485.40-50,155.20-20,314.80

Finding the Fourth Proportional to 33,485.40, 50,155.20 and 20,314.80

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Solution

The fourth proportional to 33,485.40, 50,155.20 and 20,314.80 is: 30,427.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,485.40 : 50,155.20 = 20,314.80 : x
  2. Step 2: Convert to fraction form
    33,485.40/50,155.20 = 20,314.80/x
  3. Step 3: Cross multiply
    33,485.40x = 50,155.20 × 20,314.80
  4. Step 4: Simplify right side
    33,485.40x = 1,018,892,856.96
  5. Step 5: Solve for x
    x = 1,018,892,856.96/33,485.40
  6. Step 6: Final answer
    x = 30,427.97

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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.