Home / 20,180.05-30,267.84-5,390.26

Finding the Fourth Proportional to 20,180.05, 30,267.84 and 5,390.26

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Solution

The fourth proportional to 20,180.05, 30,267.84 and 5,390.26 is: 8,084.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,180.05 : 30,267.84 = 5,390.26 : x
  2. Step 2: Convert to fraction form
    20,180.05/30,267.84 = 5,390.26/x
  3. Step 3: Cross multiply
    20,180.05x = 30,267.84 × 5,390.26
  4. Step 4: Simplify right side
    20,180.05x = 163,151,527.24
  5. Step 5: Solve for x
    x = 163,151,527.24/20,180.05
  6. Step 6: Final answer
    x = 8,084.79

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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.