Home / 30,608.03-45,909.89-8,118.20

Finding the Fourth Proportional to 30,608.03, 45,909.89 and 8,118.20

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Solution

The fourth proportional to 30,608.03, 45,909.89 and 8,118.20 is: 12,176.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,608.03 : 45,909.89 = 8,118.20 : x
  2. Step 2: Convert to fraction form
    30,608.03/45,909.89 = 8,118.20/x
  3. Step 3: Cross multiply
    30,608.03x = 45,909.89 × 8,118.20
  4. Step 4: Simplify right side
    30,608.03x = 372,705,644.50
  5. Step 5: Solve for x
    x = 372,705,644.50/30,608.03
  6. Step 6: Final answer
    x = 12,176.73

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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.