Home / 20,229.44-30,266.40-12,330.53

Finding the Fourth Proportional to 20,229.44, 30,266.40 and 12,330.53

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Solution

The fourth proportional to 20,229.44, 30,266.40 and 12,330.53 is: 18,448.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,229.44 : 30,266.40 = 12,330.53 : x
  2. Step 2: Convert to fraction form
    20,229.44/30,266.40 = 12,330.53/x
  3. Step 3: Cross multiply
    20,229.44x = 30,266.40 × 12,330.53
  4. Step 4: Simplify right side
    20,229.44x = 373,200,601.86
  5. Step 5: Solve for x
    x = 373,200,601.86/20,229.44
  6. Step 6: Final answer
    x = 18,448.39

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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.