Home / 20,639.26-30,958.89-5,056.75

Finding the Fourth Proportional to 20,639.26, 30,958.89 and 5,056.75

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Solution

The fourth proportional to 20,639.26, 30,958.89 and 5,056.75 is: 7,585.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,639.26 : 30,958.89 = 5,056.75 : x
  2. Step 2: Convert to fraction form
    20,639.26/30,958.89 = 5,056.75/x
  3. Step 3: Cross multiply
    20,639.26x = 30,958.89 × 5,056.75
  4. Step 4: Simplify right side
    20,639.26x = 156,551,367.01
  5. Step 5: Solve for x
    x = 156,551,367.01/20,639.26
  6. Step 6: Final answer
    x = 7,585.13

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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.