Home / 23,120.80-34,681.20-22,213.60

Finding the Fourth Proportional to 23,120.80, 34,681.20 and 22,213.60

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Solution

The fourth proportional to 23,120.80, 34,681.20 and 22,213.60 is: 33,320.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,120.80 : 34,681.20 = 22,213.60 : x
  2. Step 2: Convert to fraction form
    23,120.80/34,681.20 = 22,213.60/x
  3. Step 3: Cross multiply
    23,120.80x = 34,681.20 × 22,213.60
  4. Step 4: Simplify right side
    23,120.80x = 770,394,304.32
  5. Step 5: Solve for x
    x = 770,394,304.32/23,120.80
  6. Step 6: Final answer
    x = 33,320.40

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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.