Home / 31,678.80-43,716.06-17,338.56

Finding the Fourth Proportional to 31,678.80, 43,716.06 and 17,338.56

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Solution

The fourth proportional to 31,678.80, 43,716.06 and 17,338.56 is: 23,926.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,678.80 : 43,716.06 = 17,338.56 : x
  2. Step 2: Convert to fraction form
    31,678.80/43,716.06 = 17,338.56/x
  3. Step 3: Cross multiply
    31,678.80x = 43,716.06 × 17,338.56
  4. Step 4: Simplify right side
    31,678.80x = 757,973,529.27
  5. Step 5: Solve for x
    x = 757,973,529.27/31,678.80
  6. Step 6: Final answer
    x = 23,926.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.