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Finding the Fourth Proportional to 19,294, 28,941 and 5,443

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Solution

The fourth proportional to 19,294, 28,941 and 5,443 is: 8,164.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,294 : 28,941 = 5,443 : x
  2. Step 2: Convert to fraction form
    19,294/28,941 = 5,443/x
  3. Step 3: Cross multiply
    19,294x = 28,941 × 5,443
  4. Step 4: Simplify right side
    19,294x = 157,525,863
  5. Step 5: Solve for x
    x = 157,525,863/19,294
  6. Step 6: Final answer
    x = 8,164.50

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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.