Home / 20,896.59-28,844.88-14,216.79

Finding the Fourth Proportional to 20,896.59, 28,844.88 and 14,216.79

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Solution

The fourth proportional to 20,896.59, 28,844.88 and 14,216.79 is: 19,624.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,896.59 : 28,844.88 = 14,216.79 : x
  2. Step 2: Convert to fraction form
    20,896.59/28,844.88 = 14,216.79/x
  3. Step 3: Cross multiply
    20,896.59x = 28,844.88 × 14,216.79
  4. Step 4: Simplify right side
    20,896.59x = 410,081,601.54
  5. Step 5: Solve for x
    x = 410,081,601.54/20,896.59
  6. Step 6: Final answer
    x = 19,624.33

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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.