Home / 20,952.42-28,910.19-11,754.27

Finding the Fourth Proportional to 20,952.42, 28,910.19 and 11,754.27

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Solution

The fourth proportional to 20,952.42, 28,910.19 and 11,754.27 is: 16,218.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,952.42 : 28,910.19 = 11,754.27 : x
  2. Step 2: Convert to fraction form
    20,952.42/28,910.19 = 11,754.27/x
  3. Step 3: Cross multiply
    20,952.42x = 28,910.19 × 11,754.27
  4. Step 4: Simplify right side
    20,952.42x = 339,818,223.09
  5. Step 5: Solve for x
    x = 339,818,223.09/20,952.42
  6. Step 6: Final answer
    x = 16,218.57

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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.