Home / 28,007.33-38,624.15-20,441.68

Finding the Fourth Proportional to 28,007.33, 38,624.15 and 20,441.68

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Solution

The fourth proportional to 28,007.33, 38,624.15 and 20,441.68 is: 28,190.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,007.33 : 38,624.15 = 20,441.68 : x
  2. Step 2: Convert to fraction form
    28,007.33/38,624.15 = 20,441.68/x
  3. Step 3: Cross multiply
    28,007.33x = 38,624.15 × 20,441.68
  4. Step 4: Simplify right side
    28,007.33x = 789,542,514.57
  5. Step 5: Solve for x
    x = 789,542,514.57/28,007.33
  6. Step 6: Final answer
    x = 28,190.57

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Half scale
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Double scale
Find fourth proportional to 28,008.33, 38,625.53 and 20,442.68
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.