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Finding the Fourth Proportional to 19,879.39, 29,824.90 and 8,027.06

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Solution

The fourth proportional to 19,879.39, 29,824.90 and 8,027.06 is: 12,042.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,879.39 : 29,824.90 = 8,027.06 : x
  2. Step 2: Convert to fraction form
    19,879.39/29,824.90 = 8,027.06/x
  3. Step 3: Cross multiply
    19,879.39x = 29,824.90 × 8,027.06
  4. Step 4: Simplify right side
    19,879.39x = 239,406,261.79
  5. Step 5: Solve for x
    x = 239,406,261.79/19,879.39
  6. Step 6: Final answer
    x = 12,042.94

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1.5x scale

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.