Home / 38,879.72-58,305.24-13,913

Finding the Fourth Proportional to 38,879.72, 58,305.24 and 13,913

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Solution

The fourth proportional to 38,879.72, 58,305.24 and 13,913 is: 20,864.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,879.72 : 58,305.24 = 13,913 : x
  2. Step 2: Convert to fraction form
    38,879.72/58,305.24 = 13,913/x
  3. Step 3: Cross multiply
    38,879.72x = 58,305.24 × 13,913
  4. Step 4: Simplify right side
    38,879.72x = 811,200,804.12
  5. Step 5: Solve for x
    x = 811,200,804.12/38,879.72
  6. Step 6: Final answer
    x = 20,864.37

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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.