Home / 20,562.87-30,857.00-8,080.70

Finding the Fourth Proportional to 20,562.87, 30,857.00 and 8,080.70

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Solution

The fourth proportional to 20,562.87, 30,857.00 and 8,080.70 is: 12,126.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,562.87 : 30,857.00 = 8,080.70 : x
  2. Step 2: Convert to fraction form
    20,562.87/30,857.00 = 8,080.70/x
  3. Step 3: Cross multiply
    20,562.87x = 30,857.00 × 8,080.70
  4. Step 4: Simplify right side
    20,562.87x = 249,346,196.64
  5. Step 5: Solve for x
    x = 249,346,196.64/20,562.87
  6. Step 6: Final answer
    x = 12,126.04

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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.