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Finding the Fourth Proportional to 20,235, 30,295.26 and 10,725.64

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Solution

The fourth proportional to 20,235, 30,295.26 and 10,725.64 is: 16,058.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,235 : 30,295.26 = 10,725.64 : x
  2. Step 2: Convert to fraction form
    20,235/30,295.26 = 10,725.64/x
  3. Step 3: Cross multiply
    20,235x = 30,295.26 × 10,725.64
  4. Step 4: Simplify right side
    20,235x = 324,936,052.47
  5. Step 5: Solve for x
    x = 324,936,052.47/20,235
  6. Step 6: Final answer
    x = 16,058.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.