Home / 20,277.08-30,415.50-5,485.94

Finding the Fourth Proportional to 20,277.08, 30,415.50 and 5,485.94

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Solution

The fourth proportional to 20,277.08, 30,415.50 and 5,485.94 is: 8,228.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,277.08 : 30,415.50 = 5,485.94 : x
  2. Step 2: Convert to fraction form
    20,277.08/30,415.50 = 5,485.94/x
  3. Step 3: Cross multiply
    20,277.08x = 30,415.50 × 5,485.94
  4. Step 4: Simplify right side
    20,277.08x = 166,857,608.07
  5. Step 5: Solve for x
    x = 166,857,608.07/20,277.08
  6. Step 6: Final answer
    x = 8,228.88

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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.