Home / 13,921.01-20,879.48-4,057.64

Finding the Fourth Proportional to 13,921.01, 20,879.48 and 4,057.64

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Solution

The fourth proportional to 13,921.01, 20,879.48 and 4,057.64 is: 6,085.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,921.01 : 20,879.48 = 4,057.64 : x
  2. Step 2: Convert to fraction form
    13,921.01/20,879.48 = 4,057.64/x
  3. Step 3: Cross multiply
    13,921.01x = 20,879.48 × 4,057.64
  4. Step 4: Simplify right side
    13,921.01x = 84,721,308.83
  5. Step 5: Solve for x
    x = 84,721,308.83/13,921.01
  6. Step 6: Final answer
    x = 6,085.86

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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.