Home / 30,556.38-45,821.21-18,079.95

Finding the Fourth Proportional to 30,556.38, 45,821.21 and 18,079.95

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Solution

The fourth proportional to 30,556.38, 45,821.21 and 18,079.95 is: 27,112.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,556.38 : 45,821.21 = 18,079.95 : x
  2. Step 2: Convert to fraction form
    30,556.38/45,821.21 = 18,079.95/x
  3. Step 3: Cross multiply
    30,556.38x = 45,821.21 × 18,079.95
  4. Step 4: Simplify right side
    30,556.38x = 828,445,095.34
  5. Step 5: Solve for x
    x = 828,445,095.34/30,556.38
  6. Step 6: Final answer
    x = 27,112.02

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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.