Home / 20,178.50-30,272.62-6,327.50

Finding the Fourth Proportional to 20,178.50, 30,272.62 and 6,327.50

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Solution

The fourth proportional to 20,178.50, 30,272.62 and 6,327.50 is: 9,492.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,178.50 : 30,272.62 = 6,327.50 : x
  2. Step 2: Convert to fraction form
    20,178.50/30,272.62 = 6,327.50/x
  3. Step 3: Cross multiply
    20,178.50x = 30,272.62 × 6,327.50
  4. Step 4: Simplify right side
    20,178.50x = 191,550,003.05
  5. Step 5: Solve for x
    x = 191,550,003.05/20,178.50
  6. Step 6: Final answer
    x = 9,492.78

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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.