Home / 20,442.60-30,639.60-8,596.35

Finding the Fourth Proportional to 20,442.60, 30,639.60 and 8,596.35

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Solution

The fourth proportional to 20,442.60, 30,639.60 and 8,596.35 is: 12,884.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,442.60 : 30,639.60 = 8,596.35 : x
  2. Step 2: Convert to fraction form
    20,442.60/30,639.60 = 8,596.35/x
  3. Step 3: Cross multiply
    20,442.60x = 30,639.60 × 8,596.35
  4. Step 4: Simplify right side
    20,442.60x = 263,388,725.46
  5. Step 5: Solve for x
    x = 263,388,725.46/20,442.60
  6. Step 6: Final answer
    x = 12,884.31

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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.