Home / 20,263.25-27,966.53-11,879.75

Finding the Fourth Proportional to 20,263.25, 27,966.53 and 11,879.75

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Solution

The fourth proportional to 20,263.25, 27,966.53 and 11,879.75 is: 16,395.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,263.25 : 27,966.53 = 11,879.75 : x
  2. Step 2: Convert to fraction form
    20,263.25/27,966.53 = 11,879.75/x
  3. Step 3: Cross multiply
    20,263.25x = 27,966.53 × 11,879.75
  4. Step 4: Simplify right side
    20,263.25x = 332,235,384.77
  5. Step 5: Solve for x
    x = 332,235,384.77/20,263.25
  6. Step 6: Final answer
    x = 16,395.96

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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.