Home / 20,175.44-27,855.12-13,008.56

Finding the Fourth Proportional to 20,175.44, 27,855.12 and 13,008.56

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Solution

The fourth proportional to 20,175.44, 27,855.12 and 13,008.56 is: 17,960.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,175.44 : 27,855.12 = 13,008.56 : x
  2. Step 2: Convert to fraction form
    20,175.44/27,855.12 = 13,008.56/x
  3. Step 3: Cross multiply
    20,175.44x = 27,855.12 × 13,008.56
  4. Step 4: Simplify right side
    20,175.44x = 362,354,999.83
  5. Step 5: Solve for x
    x = 362,354,999.83/20,175.44
  6. Step 6: Final answer
    x = 17,960.20

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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.