Home / 28,016.92-38,662.84-15,270.20

Finding the Fourth Proportional to 28,016.92, 38,662.84 and 15,270.20

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Solution

The fourth proportional to 28,016.92, 38,662.84 and 15,270.20 is: 21,072.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,016.92 : 38,662.84 = 15,270.20 : x
  2. Step 2: Convert to fraction form
    28,016.92/38,662.84 = 15,270.20/x
  3. Step 3: Cross multiply
    28,016.92x = 38,662.84 × 15,270.20
  4. Step 4: Simplify right side
    28,016.92x = 590,389,299.37
  5. Step 5: Solve for x
    x = 590,389,299.37/28,016.92
  6. Step 6: Final answer
    x = 21,072.60

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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.