Home / 19,791.21-27,311.87-10,839.03

Finding the Fourth Proportional to 19,791.21, 27,311.87 and 10,839.03

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Solution

The fourth proportional to 19,791.21, 27,311.87 and 10,839.03 is: 14,957.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,791.21 : 27,311.87 = 10,839.03 : x
  2. Step 2: Convert to fraction form
    19,791.21/27,311.87 = 10,839.03/x
  3. Step 3: Cross multiply
    19,791.21x = 27,311.87 × 10,839.03
  4. Step 4: Simplify right side
    19,791.21x = 296,034,298.96
  5. Step 5: Solve for x
    x = 296,034,298.96/19,791.21
  6. Step 6: Final answer
    x = 14,957.87

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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.