Home / 20,745.37-31,090.16-11,371.33

Finding the Fourth Proportional to 20,745.37, 31,090.16 and 11,371.33

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Solution

The fourth proportional to 20,745.37, 31,090.16 and 11,371.33 is: 17,041.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,745.37 : 31,090.16 = 11,371.33 : x
  2. Step 2: Convert to fraction form
    20,745.37/31,090.16 = 11,371.33/x
  3. Step 3: Cross multiply
    20,745.37x = 31,090.16 × 11,371.33
  4. Step 4: Simplify right side
    20,745.37x = 353,536,412.26
  5. Step 5: Solve for x
    x = 353,536,412.26/20,745.37
  6. Step 6: Final answer
    x = 17,041.70

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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.