Home / 20,349.02-28,078.44-11,852.54

Finding the Fourth Proportional to 20,349.02, 28,078.44 and 11,852.54

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Solution

The fourth proportional to 20,349.02, 28,078.44 and 11,852.54 is: 16,354.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,349.02 : 28,078.44 = 11,852.54 : x
  2. Step 2: Convert to fraction form
    20,349.02/28,078.44 = 11,852.54/x
  3. Step 3: Cross multiply
    20,349.02x = 28,078.44 × 11,852.54
  4. Step 4: Simplify right side
    20,349.02x = 332,800,833.24
  5. Step 5: Solve for x
    x = 332,800,833.24/20,349.02
  6. Step 6: Final answer
    x = 16,354.64

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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.