Home / 20,134.18-30,185.46-12,723.04

Finding the Fourth Proportional to 20,134.18, 30,185.46 and 12,723.04

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Solution

The fourth proportional to 20,134.18, 30,185.46 and 12,723.04 is: 19,074.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,134.18 : 30,185.46 = 12,723.04 : x
  2. Step 2: Convert to fraction form
    20,134.18/30,185.46 = 12,723.04/x
  3. Step 3: Cross multiply
    20,134.18x = 30,185.46 × 12,723.04
  4. Step 4: Simplify right side
    20,134.18x = 384,050,815.00
  5. Step 5: Solve for x
    x = 384,050,815.00/20,134.18
  6. Step 6: Final answer
    x = 19,074.57

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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.