Home / 20,698.49-28,563.72-11,267.03

Finding the Fourth Proportional to 20,698.49, 28,563.72 and 11,267.03

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Solution

The fourth proportional to 20,698.49, 28,563.72 and 11,267.03 is: 15,548.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,698.49 : 28,563.72 = 11,267.03 : x
  2. Step 2: Convert to fraction form
    20,698.49/28,563.72 = 11,267.03/x
  3. Step 3: Cross multiply
    20,698.49x = 28,563.72 × 11,267.03
  4. Step 4: Simplify right side
    20,698.49x = 321,828,290.15
  5. Step 5: Solve for x
    x = 321,828,290.15/20,698.49
  6. Step 6: Final answer
    x = 15,548.39

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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.