Home / 20,624.08-30,940.92-8,938.48

Finding the Fourth Proportional to 20,624.08, 30,940.92 and 8,938.48

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Solution

The fourth proportional to 20,624.08, 30,940.92 and 8,938.48 is: 13,409.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,624.08 : 30,940.92 = 8,938.48 : x
  2. Step 2: Convert to fraction form
    20,624.08/30,940.92 = 8,938.48/x
  3. Step 3: Cross multiply
    20,624.08x = 30,940.92 × 8,938.48
  4. Step 4: Simplify right side
    20,624.08x = 276,564,794.60
  5. Step 5: Solve for x
    x = 276,564,794.60/20,624.08
  6. Step 6: Final answer
    x = 13,409.80

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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.