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Finding the Fourth Proportional to 43,504, 65,256 and 18,880

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Solution

The fourth proportional to 43,504, 65,256 and 18,880 is: 28,320

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,504 : 65,256 = 18,880 : x
  2. Step 2: Convert to fraction form
    43,504/65,256 = 18,880/x
  3. Step 3: Cross multiply
    43,504x = 65,256 × 18,880
  4. Step 4: Simplify right side
    43,504x = 1,232,033,280
  5. Step 5: Solve for x
    x = 1,232,033,280/43,504
  6. Step 6: Final answer
    x = 28,320

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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.