Home / 22,172.24-30,601.62-13,220.32

Finding the Fourth Proportional to 22,172.24, 30,601.62 and 13,220.32

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Solution

The fourth proportional to 22,172.24, 30,601.62 and 13,220.32 is: 18,246.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,172.24 : 30,601.62 = 13,220.32 : x
  2. Step 2: Convert to fraction form
    22,172.24/30,601.62 = 13,220.32/x
  3. Step 3: Cross multiply
    22,172.24x = 30,601.62 × 13,220.32
  4. Step 4: Simplify right side
    22,172.24x = 404,563,208.92
  5. Step 5: Solve for x
    x = 404,563,208.92/22,172.24
  6. Step 6: Final answer
    x = 18,246.38

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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.