Home / 20,040.80-27,667.36-15,003.24

Finding the Fourth Proportional to 20,040.80, 27,667.36 and 15,003.24

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Solution

The fourth proportional to 20,040.80, 27,667.36 and 15,003.24 is: 20,712.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,040.80 : 27,667.36 = 15,003.24 : x
  2. Step 2: Convert to fraction form
    20,040.80/27,667.36 = 15,003.24/x
  3. Step 3: Cross multiply
    20,040.80x = 27,667.36 × 15,003.24
  4. Step 4: Simplify right side
    20,040.80x = 415,100,042.25
  5. Step 5: Solve for x
    x = 415,100,042.25/20,040.80
  6. Step 6: Final answer
    x = 20,712.75

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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.