Home / 20,164.58-30,246.87-8,318.18

Finding the Fourth Proportional to 20,164.58, 30,246.87 and 8,318.18

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Solution

The fourth proportional to 20,164.58, 30,246.87 and 8,318.18 is: 12,477.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,164.58 : 30,246.87 = 8,318.18 : x
  2. Step 2: Convert to fraction form
    20,164.58/30,246.87 = 8,318.18/x
  3. Step 3: Cross multiply
    20,164.58x = 30,246.87 × 8,318.18
  4. Step 4: Simplify right side
    20,164.58x = 251,598,909.10
  5. Step 5: Solve for x
    x = 251,598,909.10/20,164.58
  6. Step 6: Final answer
    x = 12,477.27

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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.