Home / 20,723.04-28,611.23-14,273.55

Finding the Fourth Proportional to 20,723.04, 28,611.23 and 14,273.55

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Solution

The fourth proportional to 20,723.04, 28,611.23 and 14,273.55 is: 19,706.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723.04 : 28,611.23 = 14,273.55 : x
  2. Step 2: Convert to fraction form
    20,723.04/28,611.23 = 14,273.55/x
  3. Step 3: Cross multiply
    20,723.04x = 28,611.23 × 14,273.55
  4. Step 4: Simplify right side
    20,723.04x = 408,383,750.60
  5. Step 5: Solve for x
    x = 408,383,750.60/20,723.04
  6. Step 6: Final answer
    x = 19,706.75

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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.