Home / 19,128.74-28,697.18-5,982.11

Finding the Fourth Proportional to 19,128.74, 28,697.18 and 5,982.11

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Solution

The fourth proportional to 19,128.74, 28,697.18 and 5,982.11 is: 8,974.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,128.74 : 28,697.18 = 5,982.11 : x
  2. Step 2: Convert to fraction form
    19,128.74/28,697.18 = 5,982.11/x
  3. Step 3: Cross multiply
    19,128.74x = 28,697.18 × 5,982.11
  4. Step 4: Simplify right side
    19,128.74x = 171,669,514.05
  5. Step 5: Solve for x
    x = 171,669,514.05/19,128.74
  6. Step 6: Final answer
    x = 8,974.43

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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.