Home / 22,231.76-33,205.66-20,120.16

Finding the Fourth Proportional to 22,231.76, 33,205.66 and 20,120.16

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Solution

The fourth proportional to 22,231.76, 33,205.66 and 20,120.16 is: 30,051.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,231.76 : 33,205.66 = 20,120.16 : x
  2. Step 2: Convert to fraction form
    22,231.76/33,205.66 = 20,120.16/x
  3. Step 3: Cross multiply
    22,231.76x = 33,205.66 × 20,120.16
  4. Step 4: Simplify right side
    22,231.76x = 668,103,192.11
  5. Step 5: Solve for x
    x = 668,103,192.11/22,231.76
  6. Step 6: Final answer
    x = 30,051.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.