Home / 18,090.03-27,173.93-13,424.43

Finding the Fourth Proportional to 18,090.03, 27,173.93 and 13,424.43

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Solution

The fourth proportional to 18,090.03, 27,173.93 and 13,424.43 is: 20,165.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,090.03 : 27,173.93 = 13,424.43 : x
  2. Step 2: Convert to fraction form
    18,090.03/27,173.93 = 13,424.43/x
  3. Step 3: Cross multiply
    18,090.03x = 27,173.93 × 13,424.43
  4. Step 4: Simplify right side
    18,090.03x = 364,794,453.99
  5. Step 5: Solve for x
    x = 364,794,453.99/18,090.03
  6. Step 6: Final answer
    x = 20,165.50

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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.