Home / 20,763.44-31,171.08-19,821.68

Finding the Fourth Proportional to 20,763.44, 31,171.08 and 19,821.68

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Solution

The fourth proportional to 20,763.44, 31,171.08 and 19,821.68 is: 29,757.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,763.44 : 31,171.08 = 19,821.68 : x
  2. Step 2: Convert to fraction form
    20,763.44/31,171.08 = 19,821.68/x
  3. Step 3: Cross multiply
    20,763.44x = 31,171.08 × 19,821.68
  4. Step 4: Simplify right side
    20,763.44x = 617,863,173.01
  5. Step 5: Solve for x
    x = 617,863,173.01/20,763.44
  6. Step 6: Final answer
    x = 29,757.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.