Home / 20,601.06-30,858.44-13,167.69

Finding the Fourth Proportional to 20,601.06, 30,858.44 and 13,167.69

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Solution

The fourth proportional to 20,601.06, 30,858.44 and 13,167.69 is: 19,723.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,601.06 : 30,858.44 = 13,167.69 : x
  2. Step 2: Convert to fraction form
    20,601.06/30,858.44 = 13,167.69/x
  3. Step 3: Cross multiply
    20,601.06x = 30,858.44 × 13,167.69
  4. Step 4: Simplify right side
    20,601.06x = 406,334,305.97
  5. Step 5: Solve for x
    x = 406,334,305.97/20,601.06
  6. Step 6: Final answer
    x = 19,723.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.