Home / 31,675.29-43,696.50-20,924.36

Finding the Fourth Proportional to 31,675.29, 43,696.50 and 20,924.36

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Solution

The fourth proportional to 31,675.29, 43,696.50 and 20,924.36 is: 28,865.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,675.29 : 43,696.50 = 20,924.36 : x
  2. Step 2: Convert to fraction form
    31,675.29/43,696.50 = 20,924.36/x
  3. Step 3: Cross multiply
    31,675.29x = 43,696.50 × 20,924.36
  4. Step 4: Simplify right side
    31,675.29x = 914,321,163.65
  5. Step 5: Solve for x
    x = 914,321,163.65/31,675.29
  6. Step 6: Final answer
    x = 28,865.44

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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.