Home / 20,698.92-28,563.90-11,747.24

Finding the Fourth Proportional to 20,698.92, 28,563.90 and 11,747.24

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Solution

The fourth proportional to 20,698.92, 28,563.90 and 11,747.24 is: 16,210.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,698.92 : 28,563.90 = 11,747.24 : x
  2. Step 2: Convert to fraction form
    20,698.92/28,563.90 = 11,747.24/x
  3. Step 3: Cross multiply
    20,698.92x = 28,563.90 × 11,747.24
  4. Step 4: Simplify right side
    20,698.92x = 335,546,988.64
  5. Step 5: Solve for x
    x = 335,546,988.64/20,698.92
  6. Step 6: Final answer
    x = 16,210.85

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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.