Home / 20,585.67-28,408.77-11,633.37

Finding the Fourth Proportional to 20,585.67, 28,408.77 and 11,633.37

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Solution

The fourth proportional to 20,585.67, 28,408.77 and 11,633.37 is: 16,054.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,585.67 : 28,408.77 = 11,633.37 : x
  2. Step 2: Convert to fraction form
    20,585.67/28,408.77 = 11,633.37/x
  3. Step 3: Cross multiply
    20,585.67x = 28,408.77 × 11,633.37
  4. Step 4: Simplify right side
    20,585.67x = 330,489,732.65
  5. Step 5: Solve for x
    x = 330,489,732.65/20,585.67
  6. Step 6: Final answer
    x = 16,054.36

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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.