Home / 20,469.35-28,243.74-12,926.02

Finding the Fourth Proportional to 20,469.35, 28,243.74 and 12,926.02

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Solution

The fourth proportional to 20,469.35, 28,243.74 and 12,926.02 is: 17,835.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,469.35 : 28,243.74 = 12,926.02 : x
  2. Step 2: Convert to fraction form
    20,469.35/28,243.74 = 12,926.02/x
  3. Step 3: Cross multiply
    20,469.35x = 28,243.74 × 12,926.02
  4. Step 4: Simplify right side
    20,469.35x = 365,079,245.24
  5. Step 5: Solve for x
    x = 365,079,245.24/20,469.35
  6. Step 6: Final answer
    x = 17,835.41

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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.