Home / 20,078.16-30,118.92-6,750.48

Finding the Fourth Proportional to 20,078.16, 30,118.92 and 6,750.48

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Solution

The fourth proportional to 20,078.16, 30,118.92 and 6,750.48 is: 10,126.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,078.16 : 30,118.92 = 6,750.48 : x
  2. Step 2: Convert to fraction form
    20,078.16/30,118.92 = 6,750.48/x
  3. Step 3: Cross multiply
    20,078.16x = 30,118.92 × 6,750.48
  4. Step 4: Simplify right side
    20,078.16x = 203,317,167.08
  5. Step 5: Solve for x
    x = 203,317,167.08/20,078.16
  6. Step 6: Final answer
    x = 10,126.28

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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.