Home / 28,142.11-38,827.73-16,205.14

Finding the Fourth Proportional to 28,142.11, 38,827.73 and 16,205.14

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Solution

The fourth proportional to 28,142.11, 38,827.73 and 16,205.14 is: 22,358.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,142.11 : 38,827.73 = 16,205.14 : x
  2. Step 2: Convert to fraction form
    28,142.11/38,827.73 = 16,205.14/x
  3. Step 3: Cross multiply
    28,142.11x = 38,827.73 × 16,205.14
  4. Step 4: Simplify right side
    28,142.11x = 629,208,743.98
  5. Step 5: Solve for x
    x = 629,208,743.98/28,142.11
  6. Step 6: Final answer
    x = 22,358.27

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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.