Home / 20,141.12-30,177.56-12,333.62

Finding the Fourth Proportional to 20,141.12, 30,177.56 and 12,333.62

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Solution

The fourth proportional to 20,141.12, 30,177.56 and 12,333.62 is: 18,479.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,141.12 : 30,177.56 = 12,333.62 : x
  2. Step 2: Convert to fraction form
    20,141.12/30,177.56 = 12,333.62/x
  3. Step 3: Cross multiply
    20,141.12x = 30,177.56 × 12,333.62
  4. Step 4: Simplify right side
    20,141.12x = 372,198,557.57
  5. Step 5: Solve for x
    x = 372,198,557.57/20,141.12
  6. Step 6: Final answer
    x = 18,479.54

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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.