Home / 21,352.36-29,466.28-11,920.92

Finding the Fourth Proportional to 21,352.36, 29,466.28 and 11,920.92

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Solution

The fourth proportional to 21,352.36, 29,466.28 and 11,920.92 is: 16,450.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,352.36 : 29,466.28 = 11,920.92 : x
  2. Step 2: Convert to fraction form
    21,352.36/29,466.28 = 11,920.92/x
  3. Step 3: Cross multiply
    21,352.36x = 29,466.28 × 11,920.92
  4. Step 4: Simplify right side
    21,352.36x = 351,265,236.73
  5. Step 5: Solve for x
    x = 351,265,236.73/21,352.36
  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.