Home / 20,179.04-30,259.36-8,485.88

Finding the Fourth Proportional to 20,179.04, 30,259.36 and 8,485.88

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Solution

The fourth proportional to 20,179.04, 30,259.36 and 8,485.88 is: 12,724.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,179.04 : 30,259.36 = 8,485.88 : x
  2. Step 2: Convert to fraction form
    20,179.04/30,259.36 = 8,485.88/x
  3. Step 3: Cross multiply
    20,179.04x = 30,259.36 × 8,485.88
  4. Step 4: Simplify right side
    20,179.04x = 256,777,297.84
  5. Step 5: Solve for x
    x = 256,777,297.84/20,179.04
  6. Step 6: Final answer
    x = 12,724.95

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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.