Home / 20,286.84-30,434.58-8,599.80

Finding the Fourth Proportional to 20,286.84, 30,434.58 and 8,599.80

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Solution

The fourth proportional to 20,286.84, 30,434.58 and 8,599.80 is: 12,901.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,286.84 : 30,434.58 = 8,599.80 : x
  2. Step 2: Convert to fraction form
    20,286.84/30,434.58 = 8,599.80/x
  3. Step 3: Cross multiply
    20,286.84x = 30,434.58 × 8,599.80
  4. Step 4: Simplify right side
    20,286.84x = 261,731,301.08
  5. Step 5: Solve for x
    x = 261,731,301.08/20,286.84
  6. Step 6: Final answer
    x = 12,901.53

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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.