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Finding the Fourth Proportional to 43,617.93, 65,374.08 and 19,893

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Solution

The fourth proportional to 43,617.93, 65,374.08 and 19,893 is: 29,815.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,617.93 : 65,374.08 = 19,893 : x
  2. Step 2: Convert to fraction form
    43,617.93/65,374.08 = 19,893/x
  3. Step 3: Cross multiply
    43,617.93x = 65,374.08 × 19,893
  4. Step 4: Simplify right side
    43,617.93x = 1,300,486,573.44
  5. Step 5: Solve for x
    x = 1,300,486,573.44/43,617.93
  6. Step 6: Final answer
    x = 29,815.41

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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.