Home / 20,180.03-30,267.68-5,390.10

Finding the Fourth Proportional to 20,180.03, 30,267.68 and 5,390.10

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Solution

The fourth proportional to 20,180.03, 30,267.68 and 5,390.10 is: 8,084.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,180.03 : 30,267.68 = 5,390.10 : x
  2. Step 2: Convert to fraction form
    20,180.03/30,267.68 = 5,390.10/x
  3. Step 3: Cross multiply
    20,180.03x = 30,267.68 × 5,390.10
  4. Step 4: Simplify right side
    20,180.03x = 163,145,850.41
  5. Step 5: Solve for x
    x = 163,145,850.41/20,180.03
  6. Step 6: Final answer
    x = 8,084.52

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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.