Home / 20,145.26-30,239.76-14,863.70

Finding the Fourth Proportional to 20,145.26, 30,239.76 and 14,863.70

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Solution

The fourth proportional to 20,145.26, 30,239.76 and 14,863.70 is: 22,311.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,145.26 : 30,239.76 = 14,863.70 : x
  2. Step 2: Convert to fraction form
    20,145.26/30,239.76 = 14,863.70/x
  3. Step 3: Cross multiply
    20,145.26x = 30,239.76 × 14,863.70
  4. Step 4: Simplify right side
    20,145.26x = 449,474,720.71
  5. Step 5: Solve for x
    x = 449,474,720.71/20,145.26
  6. Step 6: Final answer
    x = 22,311.69

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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.