Home / 21,950.22-30,291.08-11,878.44

Finding the Fourth Proportional to 21,950.22, 30,291.08 and 11,878.44

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Solution

The fourth proportional to 21,950.22, 30,291.08 and 11,878.44 is: 16,392.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,950.22 : 30,291.08 = 11,878.44 : x
  2. Step 2: Convert to fraction form
    21,950.22/30,291.08 = 11,878.44/x
  3. Step 3: Cross multiply
    21,950.22x = 30,291.08 × 11,878.44
  4. Step 4: Simplify right side
    21,950.22x = 359,810,716.92
  5. Step 5: Solve for x
    x = 359,810,716.92/21,950.22
  6. Step 6: Final answer
    x = 16,392.12

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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.