Home / 19,079.91-28,614.72-7,984.35

Finding the Fourth Proportional to 19,079.91, 28,614.72 and 7,984.35

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Solution

The fourth proportional to 19,079.91, 28,614.72 and 7,984.35 is: 11,974.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,079.91 : 28,614.72 = 7,984.35 : x
  2. Step 2: Convert to fraction form
    19,079.91/28,614.72 = 7,984.35/x
  3. Step 3: Cross multiply
    19,079.91x = 28,614.72 × 7,984.35
  4. Step 4: Simplify right side
    19,079.91x = 228,469,939.63
  5. Step 5: Solve for x
    x = 228,469,939.63/19,079.91
  6. Step 6: Final answer
    x = 11,974.37

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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.