Home / 21,610.06-29,819.55-13,224.94

Finding the Fourth Proportional to 21,610.06, 29,819.55 and 13,224.94

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Solution

The fourth proportional to 21,610.06, 29,819.55 and 13,224.94 is: 18,248.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,610.06 : 29,819.55 = 13,224.94 : x
  2. Step 2: Convert to fraction form
    21,610.06/29,819.55 = 13,224.94/x
  3. Step 3: Cross multiply
    21,610.06x = 29,819.55 × 13,224.94
  4. Step 4: Simplify right side
    21,610.06x = 394,361,759.58
  5. Step 5: Solve for x
    x = 394,361,759.58/21,610.06
  6. Step 6: Final answer
    x = 18,248.99

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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.