Home / 31,739.14-43,813.98-22,216.43

Finding the Fourth Proportional to 31,739.14, 43,813.98 and 22,216.43

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Solution

The fourth proportional to 31,739.14, 43,813.98 and 22,216.43 is: 30,668.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,739.14 : 43,813.98 = 22,216.43 : x
  2. Step 2: Convert to fraction form
    31,739.14/43,813.98 = 22,216.43/x
  3. Step 3: Cross multiply
    31,739.14x = 43,813.98 × 22,216.43
  4. Step 4: Simplify right side
    31,739.14x = 973,390,329.23
  5. Step 5: Solve for x
    x = 973,390,329.23/31,739.14
  6. Step 6: Final answer
    x = 30,668.45

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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.