Home / 28,016.19-38,662.23-15,440.94

Finding the Fourth Proportional to 28,016.19, 38,662.23 and 15,440.94

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Solution

The fourth proportional to 28,016.19, 38,662.23 and 15,440.94 is: 21,308.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,016.19 : 38,662.23 = 15,440.94 : x
  2. Step 2: Convert to fraction form
    28,016.19/38,662.23 = 15,440.94/x
  3. Step 3: Cross multiply
    28,016.19x = 38,662.23 × 15,440.94
  4. Step 4: Simplify right side
    28,016.19x = 596,981,173.70
  5. Step 5: Solve for x
    x = 596,981,173.70/28,016.19
  6. Step 6: Final answer
    x = 21,308.44

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Half scale
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Double scale
Find fourth proportional to 28,017.19, 38,663.61 and 15,441.94
Similar ratio
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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.