Home / 20,118.75-30,179.79-6,267.75

Finding the Fourth Proportional to 20,118.75, 30,179.79 and 6,267.75

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Solution

The fourth proportional to 20,118.75, 30,179.79 and 6,267.75 is: 9,402.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,118.75 : 30,179.79 = 6,267.75 : x
  2. Step 2: Convert to fraction form
    20,118.75/30,179.79 = 6,267.75/x
  3. Step 3: Cross multiply
    20,118.75x = 30,179.79 × 6,267.75
  4. Step 4: Simplify right side
    20,118.75x = 189,159,378.77
  5. Step 5: Solve for x
    x = 189,159,378.77/20,118.75
  6. Step 6: Final answer
    x = 9,402.14

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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.