Home / 20,710.62-28,574.37-11,757.96

Finding the Fourth Proportional to 20,710.62, 28,574.37 and 11,757.96

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Solution

The fourth proportional to 20,710.62, 28,574.37 and 11,757.96 is: 16,222.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,710.62 : 28,574.37 = 11,757.96 : x
  2. Step 2: Convert to fraction form
    20,710.62/28,574.37 = 11,757.96/x
  3. Step 3: Cross multiply
    20,710.62x = 28,574.37 × 11,757.96
  4. Step 4: Simplify right side
    20,710.62x = 335,976,299.49
  5. Step 5: Solve for x
    x = 335,976,299.49/20,710.62
  6. Step 6: Final answer
    x = 16,222.42

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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.