Home / 21,896.30-30,216.93-12,464.86

Finding the Fourth Proportional to 21,896.30, 30,216.93 and 12,464.86

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Solution

The fourth proportional to 21,896.30, 30,216.93 and 12,464.86 is: 17,201.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,896.30 : 30,216.93 = 12,464.86 : x
  2. Step 2: Convert to fraction form
    21,896.30/30,216.93 = 12,464.86/x
  3. Step 3: Cross multiply
    21,896.30x = 30,216.93 × 12,464.86
  4. Step 4: Simplify right side
    21,896.30x = 376,649,736.45
  5. Step 5: Solve for x
    x = 376,649,736.45/21,896.30
  6. Step 6: Final answer
    x = 17,201.53

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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.