Home / 20,698.19-28,563.50-11,266.75

Finding the Fourth Proportional to 20,698.19, 28,563.50 and 11,266.75

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Solution

The fourth proportional to 20,698.19, 28,563.50 and 11,266.75 is: 15,548.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,698.19 : 28,563.50 = 11,266.75 : x
  2. Step 2: Convert to fraction form
    20,698.19/28,563.50 = 11,266.75/x
  3. Step 3: Cross multiply
    20,698.19x = 28,563.50 × 11,266.75
  4. Step 4: Simplify right side
    20,698.19x = 321,817,813.63
  5. Step 5: Solve for x
    x = 321,817,813.63/20,698.19
  6. Step 6: Final answer
    x = 15,548.11

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Double scale
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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.