Home / 20,080.14-30,120.03-15,701.28

Finding the Fourth Proportional to 20,080.14, 30,120.03 and 15,701.28

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Solution

The fourth proportional to 20,080.14, 30,120.03 and 15,701.28 is: 23,551.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,080.14 : 30,120.03 = 15,701.28 : x
  2. Step 2: Convert to fraction form
    20,080.14/30,120.03 = 15,701.28/x
  3. Step 3: Cross multiply
    20,080.14x = 30,120.03 × 15,701.28
  4. Step 4: Simplify right side
    20,080.14x = 472,923,024.64
  5. Step 5: Solve for x
    x = 472,923,024.64/20,080.14
  6. Step 6: Final answer
    x = 23,551.78

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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.