Home / 28,016.35-38,662.05-15,269.65

Finding the Fourth Proportional to 28,016.35, 38,662.05 and 15,269.65

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Solution

The fourth proportional to 28,016.35, 38,662.05 and 15,269.65 is: 21,071.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,016.35 : 38,662.05 = 15,269.65 : x
  2. Step 2: Convert to fraction form
    28,016.35/38,662.05 = 15,269.65/x
  3. Step 3: Cross multiply
    28,016.35x = 38,662.05 × 15,269.65
  4. Step 4: Simplify right side
    28,016.35x = 590,355,778.47
  5. Step 5: Solve for x
    x = 590,355,778.47/28,016.35
  6. Step 6: Final answer
    x = 21,071.83

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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.