Home / 21,961.83-30,307.33-11,890.27

Finding the Fourth Proportional to 21,961.83, 30,307.33 and 11,890.27

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Solution

The fourth proportional to 21,961.83, 30,307.33 and 11,890.27 is: 16,408.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,961.83 : 30,307.33 = 11,890.27 : x
  2. Step 2: Convert to fraction form
    21,961.83/30,307.33 = 11,890.27/x
  3. Step 3: Cross multiply
    21,961.83x = 30,307.33 × 11,890.27
  4. Step 4: Simplify right side
    21,961.83x = 360,362,260.91
  5. Step 5: Solve for x
    x = 360,362,260.91/21,961.83
  6. Step 6: Final answer
    x = 16,408.58

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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.