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Finding the Fourth Proportional to 27,288.75, 40,946.09 and 8,820.75

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Solution

The fourth proportional to 27,288.75, 40,946.09 and 8,820.75 is: 13,235.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,288.75 : 40,946.09 = 8,820.75 : x
  2. Step 2: Convert to fraction form
    27,288.75/40,946.09 = 8,820.75/x
  3. Step 3: Cross multiply
    27,288.75x = 40,946.09 × 8,820.75
  4. Step 4: Simplify right side
    27,288.75x = 361,175,179.26
  5. Step 5: Solve for x
    x = 361,175,179.26/27,288.75
  6. Step 6: Final answer
    x = 13,235.31

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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.