Home / 21,013.26-31,525.30-7,162.26

Finding the Fourth Proportional to 21,013.26, 31,525.30 and 7,162.26

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Solution

The fourth proportional to 21,013.26, 31,525.30 and 7,162.26 is: 10,745.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,013.26 : 31,525.30 = 7,162.26 : x
  2. Step 2: Convert to fraction form
    21,013.26/31,525.30 = 7,162.26/x
  3. Step 3: Cross multiply
    21,013.26x = 31,525.30 × 7,162.26
  4. Step 4: Simplify right side
    21,013.26x = 225,792,395.18
  5. Step 5: Solve for x
    x = 225,792,395.18/21,013.26
  6. Step 6: Final answer
    x = 10,745.23

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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.