Home / 38,583.39-57,879.74-13,618.33

Finding the Fourth Proportional to 38,583.39, 57,879.74 and 13,618.33

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Solution

The fourth proportional to 38,583.39, 57,879.74 and 13,618.33 is: 20,429.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,583.39 : 57,879.74 = 13,618.33 : x
  2. Step 2: Convert to fraction form
    38,583.39/57,879.74 = 13,618.33/x
  3. Step 3: Cross multiply
    38,583.39x = 57,879.74 × 13,618.33
  4. Step 4: Simplify right side
    38,583.39x = 788,225,399.63
  5. Step 5: Solve for x
    x = 788,225,399.63/38,583.39
  6. Step 6: Final answer
    x = 20,429.14

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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.