Home / 20,286.09-30,379.45-16,754.49

Finding the Fourth Proportional to 20,286.09, 30,379.45 and 16,754.49

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Solution

The fourth proportional to 20,286.09, 30,379.45 and 16,754.49 is: 25,090.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,286.09 : 30,379.45 = 16,754.49 : x
  2. Step 2: Convert to fraction form
    20,286.09/30,379.45 = 16,754.49/x
  3. Step 3: Cross multiply
    20,286.09x = 30,379.45 × 16,754.49
  4. Step 4: Simplify right side
    20,286.09x = 508,992,191.23
  5. Step 5: Solve for x
    x = 508,992,191.23/20,286.09
  6. Step 6: Final answer
    x = 25,090.70

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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.