Home / 20,322.62-30,439.27-16,772.39

Finding the Fourth Proportional to 20,322.62, 30,439.27 and 16,772.39

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Solution

The fourth proportional to 20,322.62, 30,439.27 and 16,772.39 is: 25,121.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,322.62 : 30,439.27 = 16,772.39 : x
  2. Step 2: Convert to fraction form
    20,322.62/30,439.27 = 16,772.39/x
  3. Step 3: Cross multiply
    20,322.62x = 30,439.27 × 16,772.39
  4. Step 4: Simplify right side
    20,322.62x = 510,539,307.76
  5. Step 5: Solve for x
    x = 510,539,307.76/20,322.62
  6. Step 6: Final answer
    x = 25,121.73

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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.