Home / 20,722.08-31,059.90-8,232.60

Finding the Fourth Proportional to 20,722.08, 31,059.90 and 8,232.60

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Solution

The fourth proportional to 20,722.08, 31,059.90 and 8,232.60 is: 12,339.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,722.08 : 31,059.90 = 8,232.60 : x
  2. Step 2: Convert to fraction form
    20,722.08/31,059.90 = 8,232.60/x
  3. Step 3: Cross multiply
    20,722.08x = 31,059.90 × 8,232.60
  4. Step 4: Simplify right side
    20,722.08x = 255,703,732.74
  5. Step 5: Solve for x
    x = 255,703,732.74/20,722.08
  6. Step 6: Final answer
    x = 12,339.68

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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.