Home / 28,140.24-38,833.92-16,205.70

Finding the Fourth Proportional to 28,140.24, 38,833.92 and 16,205.70

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Solution

The fourth proportional to 28,140.24, 38,833.92 and 16,205.70 is: 22,364.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,140.24 : 38,833.92 = 16,205.70 : x
  2. Step 2: Convert to fraction form
    28,140.24/38,833.92 = 16,205.70/x
  3. Step 3: Cross multiply
    28,140.24x = 38,833.92 × 16,205.70
  4. Step 4: Simplify right side
    28,140.24x = 629,330,857.34
  5. Step 5: Solve for x
    x = 629,330,857.34/28,140.24
  6. Step 6: Final answer
    x = 22,364.09

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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.