Home / 20,506.20-30,757.48-5,714.80

Finding the Fourth Proportional to 20,506.20, 30,757.48 and 5,714.80

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Solution

The fourth proportional to 20,506.20, 30,757.48 and 5,714.80 is: 8,571.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,506.20 : 30,757.48 = 5,714.80 : x
  2. Step 2: Convert to fraction form
    20,506.20/30,757.48 = 5,714.80/x
  3. Step 3: Cross multiply
    20,506.20x = 30,757.48 × 5,714.80
  4. Step 4: Simplify right side
    20,506.20x = 175,772,846.70
  5. Step 5: Solve for x
    x = 175,772,846.70/20,506.20
  6. Step 6: Final answer
    x = 8,571.69

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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.