Home / 20,148.30-30,221.24-6,108.08

Finding the Fourth Proportional to 20,148.30, 30,221.24 and 6,108.08

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Solution

The fourth proportional to 20,148.30, 30,221.24 and 6,108.08 is: 9,161.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148.30 : 30,221.24 = 6,108.08 : x
  2. Step 2: Convert to fraction form
    20,148.30/30,221.24 = 6,108.08/x
  3. Step 3: Cross multiply
    20,148.30x = 30,221.24 × 6,108.08
  4. Step 4: Simplify right side
    20,148.30x = 184,593,751.62
  5. Step 5: Solve for x
    x = 184,593,751.62/20,148.30
  6. Step 6: Final answer
    x = 9,161.75

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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.