Home / 20,179.28-30,274.04-6,328.40

Finding the Fourth Proportional to 20,179.28, 30,274.04 and 6,328.40

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Solution

The fourth proportional to 20,179.28, 30,274.04 and 6,328.40 is: 9,494.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,179.28 : 30,274.04 = 6,328.40 : x
  2. Step 2: Convert to fraction form
    20,179.28/30,274.04 = 6,328.40/x
  3. Step 3: Cross multiply
    20,179.28x = 30,274.04 × 6,328.40
  4. Step 4: Simplify right side
    20,179.28x = 191,586,234.74
  5. Step 5: Solve for x
    x = 191,586,234.74/20,179.28
  6. Step 6: Final answer
    x = 9,494.21

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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.