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Finding the Fourth Proportional to 26,880, 37,094.40 and 15,104

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Solution

The fourth proportional to 26,880, 37,094.40 and 15,104 is: 20,843.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,880 : 37,094.40 = 15,104 : x
  2. Step 2: Convert to fraction form
    26,880/37,094.40 = 15,104/x
  3. Step 3: Cross multiply
    26,880x = 37,094.40 × 15,104
  4. Step 4: Simplify right side
    26,880x = 560,273,817.60
  5. Step 5: Solve for x
    x = 560,273,817.60/26,880
  6. Step 6: Final answer
    x = 20,843.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.