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Finding the Fourth Proportional to 27,607.60, 41,416.80 and 11,812.60

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Solution

The fourth proportional to 27,607.60, 41,416.80 and 11,812.60 is: 17,721.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,607.60 : 41,416.80 = 11,812.60 : x
  2. Step 2: Convert to fraction form
    27,607.60/41,416.80 = 11,812.60/x
  3. Step 3: Cross multiply
    27,607.60x = 41,416.80 × 11,812.60
  4. Step 4: Simplify right side
    27,607.60x = 489,240,091.68
  5. Step 5: Solve for x
    x = 489,240,091.68/27,607.60
  6. Step 6: Final answer
    x = 17,721.21

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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.