Home / 20,180.79-30,267.59-6,137.42

Finding the Fourth Proportional to 20,180.79, 30,267.59 and 6,137.42

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Solution

The fourth proportional to 20,180.79, 30,267.59 and 6,137.42 is: 9,205.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,180.79 : 30,267.59 = 6,137.42 : x
  2. Step 2: Convert to fraction form
    20,180.79/30,267.59 = 6,137.42/x
  3. Step 3: Cross multiply
    20,180.79x = 30,267.59 × 6,137.42
  4. Step 4: Simplify right side
    20,180.79x = 185,764,730.19
  5. Step 5: Solve for x
    x = 185,764,730.19/20,180.79
  6. Step 6: Final answer
    x = 9,205.03

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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.