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Finding the Fourth Proportional to 27,946.48, 41,878.97 and 12,958.19

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Solution

The fourth proportional to 27,946.48, 41,878.97 and 12,958.19 is: 19,418.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,946.48 : 41,878.97 = 12,958.19 : x
  2. Step 2: Convert to fraction form
    27,946.48/41,878.97 = 12,958.19/x
  3. Step 3: Cross multiply
    27,946.48x = 41,878.97 × 12,958.19
  4. Step 4: Simplify right side
    27,946.48x = 542,675,650.26
  5. Step 5: Solve for x
    x = 542,675,650.26/27,946.48
  6. Step 6: Final answer
    x = 19,418.39

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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.