Home / 18,279.05-27,429.50-16,791.89

Finding the Fourth Proportional to 18,279.05, 27,429.50 and 16,791.89

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Solution

The fourth proportional to 18,279.05, 27,429.50 and 16,791.89 is: 25,197.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,279.05 : 27,429.50 = 16,791.89 : x
  2. Step 2: Convert to fraction form
    18,279.05/27,429.50 = 16,791.89/x
  3. Step 3: Cross multiply
    18,279.05x = 27,429.50 × 16,791.89
  4. Step 4: Simplify right side
    18,279.05x = 460,593,051.59
  5. Step 5: Solve for x
    x = 460,593,051.59/18,279.05
  6. Step 6: Final answer
    x = 25,197.87

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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.