Home / 28,213.49-42,321.09-12,410.33

Finding the Fourth Proportional to 28,213.49, 42,321.09 and 12,410.33

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Solution

The fourth proportional to 28,213.49, 42,321.09 and 12,410.33 is: 18,615.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,213.49 : 42,321.09 = 12,410.33 : x
  2. Step 2: Convert to fraction form
    28,213.49/42,321.09 = 12,410.33/x
  3. Step 3: Cross multiply
    28,213.49x = 42,321.09 × 12,410.33
  4. Step 4: Simplify right side
    28,213.49x = 525,218,481.25
  5. Step 5: Solve for x
    x = 525,218,481.25/28,213.49
  6. Step 6: Final answer
    x = 18,615.87

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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.