Home / 20,434.64-30,653.67-8,591.81

Finding the Fourth Proportional to 20,434.64, 30,653.67 and 8,591.81

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Solution

The fourth proportional to 20,434.64, 30,653.67 and 8,591.81 is: 12,888.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,434.64 : 30,653.67 = 8,591.81 : x
  2. Step 2: Convert to fraction form
    20,434.64/30,653.67 = 8,591.81/x
  3. Step 3: Cross multiply
    20,434.64x = 30,653.67 × 8,591.81
  4. Step 4: Simplify right side
    20,434.64x = 263,370,508.44
  5. Step 5: Solve for x
    x = 263,370,508.44/20,434.64
  6. Step 6: Final answer
    x = 12,888.43

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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.