Home / 28,164.25-38,853.54-16,220.67

Finding the Fourth Proportional to 28,164.25, 38,853.54 and 16,220.67

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Solution

The fourth proportional to 28,164.25, 38,853.54 and 16,220.67 is: 22,376.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,164.25 : 38,853.54 = 16,220.67 : x
  2. Step 2: Convert to fraction form
    28,164.25/38,853.54 = 16,220.67/x
  3. Step 3: Cross multiply
    28,164.25x = 38,853.54 × 16,220.67
  4. Step 4: Simplify right side
    28,164.25x = 630,230,304.97
  5. Step 5: Solve for x
    x = 630,230,304.97/28,164.25
  6. Step 6: Final answer
    x = 22,376.96

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Half scale
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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.