Home / 20,174.94-30,268.98-8,485.02

Finding the Fourth Proportional to 20,174.94, 30,268.98 and 8,485.02

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Solution

The fourth proportional to 20,174.94, 30,268.98 and 8,485.02 is: 12,730.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,174.94 : 30,268.98 = 8,485.02 : x
  2. Step 2: Convert to fraction form
    20,174.94/30,268.98 = 8,485.02/x
  3. Step 3: Cross multiply
    20,174.94x = 30,268.98 × 8,485.02
  4. Step 4: Simplify right side
    20,174.94x = 256,832,900.68
  5. Step 5: Solve for x
    x = 256,832,900.68/20,174.94
  6. Step 6: Final answer
    x = 12,730.29

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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.