Home / 20,494.08-30,748.61-8,650.80

Finding the Fourth Proportional to 20,494.08, 30,748.61 and 8,650.80

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Solution

The fourth proportional to 20,494.08, 30,748.61 and 8,650.80 is: 12,979.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,494.08 : 30,748.61 = 8,650.80 : x
  2. Step 2: Convert to fraction form
    20,494.08/30,748.61 = 8,650.80/x
  3. Step 3: Cross multiply
    20,494.08x = 30,748.61 × 8,650.80
  4. Step 4: Simplify right side
    20,494.08x = 266,000,097.02
  5. Step 5: Solve for x
    x = 266,000,097.02/20,494.08
  6. Step 6: Final answer
    x = 12,979.36

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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.