Home / 20,610.24-28,442.52-12,231.60

Finding the Fourth Proportional to 20,610.24, 28,442.52 and 12,231.60

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Solution

The fourth proportional to 20,610.24, 28,442.52 and 12,231.60 is: 16,879.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,610.24 : 28,442.52 = 12,231.60 : x
  2. Step 2: Convert to fraction form
    20,610.24/28,442.52 = 12,231.60/x
  3. Step 3: Cross multiply
    20,610.24x = 28,442.52 × 12,231.60
  4. Step 4: Simplify right side
    20,610.24x = 347,897,527.63
  5. Step 5: Solve for x
    x = 347,897,527.63/20,610.24
  6. Step 6: Final answer
    x = 16,879.84

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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.