Home / 20,180.60-30,271.80-7,706.60

Finding the Fourth Proportional to 20,180.60, 30,271.80 and 7,706.60

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Solution

The fourth proportional to 20,180.60, 30,271.80 and 7,706.60 is: 11,560.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,180.60 : 30,271.80 = 7,706.60 : x
  2. Step 2: Convert to fraction form
    20,180.60/30,271.80 = 7,706.60/x
  3. Step 3: Cross multiply
    20,180.60x = 30,271.80 × 7,706.60
  4. Step 4: Simplify right side
    20,180.60x = 233,292,653.88
  5. Step 5: Solve for x
    x = 233,292,653.88/20,180.60
  6. Step 6: Final answer
    x = 11,560.24

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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.