Home / 20,704.05-28,574.17-11,754.45

Finding the Fourth Proportional to 20,704.05, 28,574.17 and 11,754.45

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Solution

The fourth proportional to 20,704.05, 28,574.17 and 11,754.45 is: 16,222.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,704.05 : 28,574.17 = 11,754.45 : x
  2. Step 2: Convert to fraction form
    20,704.05/28,574.17 = 11,754.45/x
  3. Step 3: Cross multiply
    20,704.05x = 28,574.17 × 11,754.45
  4. Step 4: Simplify right side
    20,704.05x = 335,873,450.91
  5. Step 5: Solve for x
    x = 335,873,450.91/20,704.05
  6. Step 6: Final answer
    x = 16,222.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.