Home / 20,451.29-30,682.76-8,598.96

Finding the Fourth Proportional to 20,451.29, 30,682.76 and 8,598.96

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Solution

The fourth proportional to 20,451.29, 30,682.76 and 8,598.96 is: 12,900.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,451.29 : 30,682.76 = 8,598.96 : x
  2. Step 2: Convert to fraction form
    20,451.29/30,682.76 = 8,598.96/x
  3. Step 3: Cross multiply
    20,451.29x = 30,682.76 × 8,598.96
  4. Step 4: Simplify right side
    20,451.29x = 263,839,782.93
  5. Step 5: Solve for x
    x = 263,839,782.93/20,451.29
  6. Step 6: Final answer
    x = 12,900.89

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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.