Home / 28,118.44-38,803.49-16,181.56

Finding the Fourth Proportional to 28,118.44, 38,803.49 and 16,181.56

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Solution

The fourth proportional to 28,118.44, 38,803.49 and 16,181.56 is: 22,330.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,118.44 : 38,803.49 = 16,181.56 : x
  2. Step 2: Convert to fraction form
    28,118.44/38,803.49 = 16,181.56/x
  3. Step 3: Cross multiply
    28,118.44x = 38,803.49 × 16,181.56
  4. Step 4: Simplify right side
    28,118.44x = 627,901,001.64
  5. Step 5: Solve for x
    x = 627,901,001.64/28,118.44
  6. Step 6: Final answer
    x = 22,330.58

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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.