Home / 20,160.90-30,237.30-7,672.32

Finding the Fourth Proportional to 20,160.90, 30,237.30 and 7,672.32

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Solution

The fourth proportional to 20,160.90, 30,237.30 and 7,672.32 is: 11,506.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160.90 : 30,237.30 = 7,672.32 : x
  2. Step 2: Convert to fraction form
    20,160.90/30,237.30 = 7,672.32/x
  3. Step 3: Cross multiply
    20,160.90x = 30,237.30 × 7,672.32
  4. Step 4: Simplify right side
    20,160.90x = 231,990,241.54
  5. Step 5: Solve for x
    x = 231,990,241.54/20,160.90
  6. Step 6: Final answer
    x = 11,506.94

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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.