Home / 20,544.46-28,343.75-15,179.83

Finding the Fourth Proportional to 20,544.46, 28,343.75 and 15,179.83

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Solution

The fourth proportional to 20,544.46, 28,343.75 and 15,179.83 is: 20,942.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,544.46 : 28,343.75 = 15,179.83 : x
  2. Step 2: Convert to fraction form
    20,544.46/28,343.75 = 15,179.83/x
  3. Step 3: Cross multiply
    20,544.46x = 28,343.75 × 15,179.83
  4. Step 4: Simplify right side
    20,544.46x = 430,253,159.80
  5. Step 5: Solve for x
    x = 430,253,159.80/20,544.46
  6. Step 6: Final answer
    x = 20,942.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.