Home / 43,619.45-65,376.38-19,894.51

Finding the Fourth Proportional to 43,619.45, 65,376.38 and 19,894.51

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Solution

The fourth proportional to 43,619.45, 65,376.38 and 19,894.51 is: 29,817.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,619.45 : 65,376.38 = 19,894.51 : x
  2. Step 2: Convert to fraction form
    43,619.45/65,376.38 = 19,894.51/x
  3. Step 3: Cross multiply
    43,619.45x = 65,376.38 × 19,894.51
  4. Step 4: Simplify right side
    43,619.45x = 1,300,631,177.13
  5. Step 5: Solve for x
    x = 1,300,631,177.13/43,619.45
  6. Step 6: Final answer
    x = 29,817.69

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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.