Home / 30,556.86-45,818.01-18,078.54

Finding the Fourth Proportional to 30,556.86, 45,818.01 and 18,078.54

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Solution

The fourth proportional to 30,556.86, 45,818.01 and 18,078.54 is: 27,107.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,556.86 : 45,818.01 = 18,078.54 : x
  2. Step 2: Convert to fraction form
    30,556.86/45,818.01 = 18,078.54/x
  3. Step 3: Cross multiply
    30,556.86x = 45,818.01 × 18,078.54
  4. Step 4: Simplify right side
    30,556.86x = 828,322,726.51
  5. Step 5: Solve for x
    x = 828,322,726.51/30,556.86
  6. Step 6: Final answer
    x = 27,107.59

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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.