Home / 20,482.75-30,695.55-15,481.02

Finding the Fourth Proportional to 20,482.75, 30,695.55 and 15,481.02

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Solution

The fourth proportional to 20,482.75, 30,695.55 and 15,481.02 is: 23,199.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,482.75 : 30,695.55 = 15,481.02 : x
  2. Step 2: Convert to fraction form
    20,482.75/30,695.55 = 15,481.02/x
  3. Step 3: Cross multiply
    20,482.75x = 30,695.55 × 15,481.02
  4. Step 4: Simplify right side
    20,482.75x = 475,198,423.46
  5. Step 5: Solve for x
    x = 475,198,423.46/20,482.75
  6. Step 6: Final answer
    x = 23,199.93

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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.