Home / 20,320.74-30,494.12-8,633.97

Finding the Fourth Proportional to 20,320.74, 30,494.12 and 8,633.97

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Solution

The fourth proportional to 20,320.74, 30,494.12 and 8,633.97 is: 12,956.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,320.74 : 30,494.12 = 8,633.97 : x
  2. Step 2: Convert to fraction form
    20,320.74/30,494.12 = 8,633.97/x
  3. Step 3: Cross multiply
    20,320.74x = 30,494.12 × 8,633.97
  4. Step 4: Simplify right side
    20,320.74x = 263,285,274.09
  5. Step 5: Solve for x
    x = 263,285,274.09/20,320.74
  6. Step 6: Final answer
    x = 12,956.48

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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.