Home / 43,163.16-64,727.72-20,969.97

Finding the Fourth Proportional to 43,163.16, 64,727.72 and 20,969.97

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Solution

The fourth proportional to 43,163.16, 64,727.72 and 20,969.97 is: 31,446.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,163.16 : 64,727.72 = 20,969.97 : x
  2. Step 2: Convert to fraction form
    43,163.16/64,727.72 = 20,969.97/x
  3. Step 3: Cross multiply
    43,163.16x = 64,727.72 × 20,969.97
  4. Step 4: Simplify right side
    43,163.16x = 1,357,338,346.57
  5. Step 5: Solve for x
    x = 1,357,338,346.57/43,163.16
  6. Step 6: Final answer
    x = 31,446.69

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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.