Home / 28,196.06-38,892.96-18,137.61

Finding the Fourth Proportional to 28,196.06, 38,892.96 and 18,137.61

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Solution

The fourth proportional to 28,196.06, 38,892.96 and 18,137.61 is: 25,018.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,196.06 : 38,892.96 = 18,137.61 : x
  2. Step 2: Convert to fraction form
    28,196.06/38,892.96 = 18,137.61/x
  3. Step 3: Cross multiply
    28,196.06x = 38,892.96 × 18,137.61
  4. Step 4: Simplify right side
    28,196.06x = 705,425,340.23
  5. Step 5: Solve for x
    x = 705,425,340.23/28,196.06
  6. Step 6: Final answer
    x = 25,018.58

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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.