Home / 19,983.44-27,540.60-13,257.20

Finding the Fourth Proportional to 19,983.44, 27,540.60 and 13,257.20

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Solution

The fourth proportional to 19,983.44, 27,540.60 and 13,257.20 is: 18,270.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,983.44 : 27,540.60 = 13,257.20 : x
  2. Step 2: Convert to fraction form
    19,983.44/27,540.60 = 13,257.20/x
  3. Step 3: Cross multiply
    19,983.44x = 27,540.60 × 13,257.20
  4. Step 4: Simplify right side
    19,983.44x = 365,111,242.32
  5. Step 5: Solve for x
    x = 365,111,242.32/19,983.44
  6. Step 6: Final answer
    x = 18,270.69

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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.