Home / 27,943.90-41,911.80-8,220.40

Finding the Fourth Proportional to 27,943.90, 41,911.80 and 8,220.40

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Solution

The fourth proportional to 27,943.90, 41,911.80 and 8,220.40 is: 12,329.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,943.90 : 41,911.80 = 8,220.40 : x
  2. Step 2: Convert to fraction form
    27,943.90/41,911.80 = 8,220.40/x
  3. Step 3: Cross multiply
    27,943.90x = 41,911.80 × 8,220.40
  4. Step 4: Simplify right side
    27,943.90x = 344,531,760.72
  5. Step 5: Solve for x
    x = 344,531,760.72/27,943.90
  6. Step 6: Final answer
    x = 12,329.41

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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.