Home / 28,195.57-38,892.27-18,137.11

Finding the Fourth Proportional to 28,195.57, 38,892.27 and 18,137.11

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Solution

The fourth proportional to 28,195.57, 38,892.27 and 18,137.11 is: 25,017.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,195.57 : 38,892.27 = 18,137.11 : x
  2. Step 2: Convert to fraction form
    28,195.57/38,892.27 = 18,137.11/x
  3. Step 3: Cross multiply
    28,195.57x = 38,892.27 × 18,137.11
  4. Step 4: Simplify right side
    28,195.57x = 705,393,379.14
  5. Step 5: Solve for x
    x = 705,393,379.14/28,195.57
  6. Step 6: Final answer
    x = 25,017.88

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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.