Home / 28,016.42-38,662.66-15,269.60

Finding the Fourth Proportional to 28,016.42, 38,662.66 and 15,269.60

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Solution

The fourth proportional to 28,016.42, 38,662.66 and 15,269.60 is: 21,072.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,016.42 : 38,662.66 = 15,269.60 : x
  2. Step 2: Convert to fraction form
    28,016.42/38,662.66 = 15,269.60/x
  3. Step 3: Cross multiply
    28,016.42x = 38,662.66 × 15,269.60
  4. Step 4: Simplify right side
    28,016.42x = 590,363,353.14
  5. Step 5: Solve for x
    x = 590,363,353.14/28,016.42
  6. Step 6: Final answer
    x = 21,072.05

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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.