Home / 43,667.78-65,446.86-18,678.44

Finding the Fourth Proportional to 43,667.78, 65,446.86 and 18,678.44

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Solution

The fourth proportional to 43,667.78, 65,446.86 and 18,678.44 is: 27,994.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,667.78 : 65,446.86 = 18,678.44 : x
  2. Step 2: Convert to fraction form
    43,667.78/65,446.86 = 18,678.44/x
  3. Step 3: Cross multiply
    43,667.78x = 65,446.86 × 18,678.44
  4. Step 4: Simplify right side
    43,667.78x = 1,222,445,247.70
  5. Step 5: Solve for x
    x = 1,222,445,247.70/43,667.78
  6. Step 6: Final answer
    x = 27,994.22

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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.