Home / 28,090.82-42,136.20-11,447.24

Finding the Fourth Proportional to 28,090.82, 42,136.20 and 11,447.24

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Solution

The fourth proportional to 28,090.82, 42,136.20 and 11,447.24 is: 17,170.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,090.82 : 42,136.20 = 11,447.24 : x
  2. Step 2: Convert to fraction form
    28,090.82/42,136.20 = 11,447.24/x
  3. Step 3: Cross multiply
    28,090.82x = 42,136.20 × 11,447.24
  4. Step 4: Simplify right side
    28,090.82x = 482,343,194.09
  5. Step 5: Solve for x
    x = 482,343,194.09/28,090.82
  6. Step 6: Final answer
    x = 17,170.85

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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.