Home / 20,538.60-30,808.92-8,057.52

Finding the Fourth Proportional to 20,538.60, 30,808.92 and 8,057.52

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Solution

The fourth proportional to 20,538.60, 30,808.92 and 8,057.52 is: 12,086.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,538.60 : 30,808.92 = 8,057.52 : x
  2. Step 2: Convert to fraction form
    20,538.60/30,808.92 = 8,057.52/x
  3. Step 3: Cross multiply
    20,538.60x = 30,808.92 × 8,057.52
  4. Step 4: Simplify right side
    20,538.60x = 248,243,489.08
  5. Step 5: Solve for x
    x = 248,243,489.08/20,538.60
  6. Step 6: Final answer
    x = 12,086.68

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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.