Home / 21,352.25-29,466.24-11,920.88

Finding the Fourth Proportional to 21,352.25, 29,466.24 and 11,920.88

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Solution

The fourth proportional to 21,352.25, 29,466.24 and 11,920.88 is: 16,450.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,352.25 : 29,466.24 = 11,920.88 : x
  2. Step 2: Convert to fraction form
    21,352.25/29,466.24 = 11,920.88/x
  3. Step 3: Cross multiply
    21,352.25x = 29,466.24 × 11,920.88
  4. Step 4: Simplify right side
    21,352.25x = 351,263,511.09
  5. Step 5: Solve for x
    x = 351,263,511.09/21,352.25
  6. Step 6: Final answer
    x = 16,450.89

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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.