Home / 20,448.40-30,672.60-17,167.90

Finding the Fourth Proportional to 20,448.40, 30,672.60 and 17,167.90

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Solution

The fourth proportional to 20,448.40, 30,672.60 and 17,167.90 is: 25,751.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,448.40 : 30,672.60 = 17,167.90 : x
  2. Step 2: Convert to fraction form
    20,448.40/30,672.60 = 17,167.90/x
  3. Step 3: Cross multiply
    20,448.40x = 30,672.60 × 17,167.90
  4. Step 4: Simplify right side
    20,448.40x = 526,584,129.54
  5. Step 5: Solve for x
    x = 526,584,129.54/20,448.40
  6. Step 6: Final answer
    x = 25,751.85

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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.