Home / 31,688.82-43,735.26-18,257.52

Finding the Fourth Proportional to 31,688.82, 43,735.26 and 18,257.52

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Solution

The fourth proportional to 31,688.82, 43,735.26 and 18,257.52 is: 25,198.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,688.82 : 43,735.26 = 18,257.52 : x
  2. Step 2: Convert to fraction form
    31,688.82/43,735.26 = 18,257.52/x
  3. Step 3: Cross multiply
    31,688.82x = 43,735.26 × 18,257.52
  4. Step 4: Simplify right side
    31,688.82x = 798,497,384.16
  5. Step 5: Solve for x
    x = 798,497,384.16/31,688.82
  6. Step 6: Final answer
    x = 25,198.08

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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.