Home / 17,163.36-23,669.28-13,638.24

Finding the Fourth Proportional to 17,163.36, 23,669.28 and 13,638.24

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Solution

The fourth proportional to 17,163.36, 23,669.28 and 13,638.24 is: 18,807.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,163.36 : 23,669.28 = 13,638.24 : x
  2. Step 2: Convert to fraction form
    17,163.36/23,669.28 = 13,638.24/x
  3. Step 3: Cross multiply
    17,163.36x = 23,669.28 × 13,638.24
  4. Step 4: Simplify right side
    17,163.36x = 322,807,321.27
  5. Step 5: Solve for x
    x = 322,807,321.27/17,163.36
  6. Step 6: Final answer
    x = 18,807.93

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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.