Home / 43,021.56-64,544.62-13,439.82

Finding the Fourth Proportional to 43,021.56, 64,544.62 and 13,439.82

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Solution

The fourth proportional to 43,021.56, 64,544.62 and 13,439.82 is: 20,163.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,021.56 : 64,544.62 = 13,439.82 : x
  2. Step 2: Convert to fraction form
    43,021.56/64,544.62 = 13,439.82/x
  3. Step 3: Cross multiply
    43,021.56x = 64,544.62 × 13,439.82
  4. Step 4: Simplify right side
    43,021.56x = 867,468,074.77
  5. Step 5: Solve for x
    x = 867,468,074.77/43,021.56
  6. Step 6: Final answer
    x = 20,163.57

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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.