Home / 22,163.80-30,583.30-13,554.31

Finding the Fourth Proportional to 22,163.80, 30,583.30 and 13,554.31

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Solution

The fourth proportional to 22,163.80, 30,583.30 and 13,554.31 is: 18,703.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,163.80 : 30,583.30 = 13,554.31 : x
  2. Step 2: Convert to fraction form
    22,163.80/30,583.30 = 13,554.31/x
  3. Step 3: Cross multiply
    22,163.80x = 30,583.30 × 13,554.31
  4. Step 4: Simplify right side
    22,163.80x = 414,535,529.02
  5. Step 5: Solve for x
    x = 414,535,529.02/22,163.80
  6. Step 6: Final answer
    x = 18,703.27

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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.