Home / 20,738.54-28,610.09-14,021.71

Finding the Fourth Proportional to 20,738.54, 28,610.09 and 14,021.71

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Solution

The fourth proportional to 20,738.54, 28,610.09 and 14,021.71 is: 19,343.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,738.54 : 28,610.09 = 14,021.71 : x
  2. Step 2: Convert to fraction form
    20,738.54/28,610.09 = 14,021.71/x
  3. Step 3: Cross multiply
    20,738.54x = 28,610.09 × 14,021.71
  4. Step 4: Simplify right side
    20,738.54x = 401,162,296.00
  5. Step 5: Solve for x
    x = 401,162,296.00/20,738.54
  6. Step 6: Final answer
    x = 19,343.80

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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.