Home / 20,747.94-28,632.33-11,316.48

Finding the Fourth Proportional to 20,747.94, 28,632.33 and 11,316.48

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Solution

The fourth proportional to 20,747.94, 28,632.33 and 11,316.48 is: 15,616.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,747.94 : 28,632.33 = 11,316.48 : x
  2. Step 2: Convert to fraction form
    20,747.94/28,632.33 = 11,316.48/x
  3. Step 3: Cross multiply
    20,747.94x = 28,632.33 × 11,316.48
  4. Step 4: Simplify right side
    20,747.94x = 324,017,189.80
  5. Step 5: Solve for x
    x = 324,017,189.80/20,747.94
  6. Step 6: Final answer
    x = 15,616.84

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Double scale
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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.