Home / 18,914.16-28,371.26-18,886.84

Finding the Fourth Proportional to 18,914.16, 28,371.26 and 18,886.84

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Solution

The fourth proportional to 18,914.16, 28,371.26 and 18,886.84 is: 28,330.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,914.16 : 28,371.26 = 18,886.84 : x
  2. Step 2: Convert to fraction form
    18,914.16/28,371.26 = 18,886.84/x
  3. Step 3: Cross multiply
    18,914.16x = 28,371.26 × 18,886.84
  4. Step 4: Simplify right side
    18,914.16x = 535,843,448.22
  5. Step 5: Solve for x
    x = 535,843,448.22/18,914.16
  6. Step 6: Final answer
    x = 28,330.28

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.