Home / 20,411.52-30,629.54-8,724.73

Finding the Fourth Proportional to 20,411.52, 30,629.54 and 8,724.73

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Solution

The fourth proportional to 20,411.52, 30,629.54 and 8,724.73 is: 13,092.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,411.52 : 30,629.54 = 8,724.73 : x
  2. Step 2: Convert to fraction form
    20,411.52/30,629.54 = 8,724.73/x
  3. Step 3: Cross multiply
    20,411.52x = 30,629.54 × 8,724.73
  4. Step 4: Simplify right side
    20,411.52x = 267,234,466.52
  5. Step 5: Solve for x
    x = 267,234,466.52/20,411.52
  6. Step 6: Final answer
    x = 13,092.34

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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.