Home / 43,577.70-65,357.94-11,979.61

Finding the Fourth Proportional to 43,577.70, 65,357.94 and 11,979.61

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Solution

The fourth proportional to 43,577.70, 65,357.94 and 11,979.61 is: 17,967.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,577.70 : 65,357.94 = 11,979.61 : x
  2. Step 2: Convert to fraction form
    43,577.70/65,357.94 = 11,979.61/x
  3. Step 3: Cross multiply
    43,577.70x = 65,357.94 × 11,979.61
  4. Step 4: Simplify right side
    43,577.70x = 782,962,349.81
  5. Step 5: Solve for x
    x = 782,962,349.81/43,577.70
  6. Step 6: Final answer
    x = 17,967.04

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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.