Home / 20,021.48-27,628.86-11,956.49

Finding the Fourth Proportional to 20,021.48, 27,628.86 and 11,956.49

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Solution

The fourth proportional to 20,021.48, 27,628.86 and 11,956.49 is: 16,499.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,021.48 : 27,628.86 = 11,956.49 : x
  2. Step 2: Convert to fraction form
    20,021.48/27,628.86 = 11,956.49/x
  3. Step 3: Cross multiply
    20,021.48x = 27,628.86 × 11,956.49
  4. Step 4: Simplify right side
    20,021.48x = 330,344,188.30
  5. Step 5: Solve for x
    x = 330,344,188.30/20,021.48
  6. Step 6: Final answer
    x = 16,499.49

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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.