Home / 20,104.68-30,152.79-12,967.54

Finding the Fourth Proportional to 20,104.68, 30,152.79 and 12,967.54

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Solution

The fourth proportional to 20,104.68, 30,152.79 and 12,967.54 is: 19,448.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,104.68 : 30,152.79 = 12,967.54 : x
  2. Step 2: Convert to fraction form
    20,104.68/30,152.79 = 12,967.54/x
  3. Step 3: Cross multiply
    20,104.68x = 30,152.79 × 12,967.54
  4. Step 4: Simplify right side
    20,104.68x = 391,007,510.44
  5. Step 5: Solve for x
    x = 391,007,510.44/20,104.68
  6. Step 6: Final answer
    x = 19,448.58

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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.