Home / 20,143.26-30,236.76-14,861.70

Finding the Fourth Proportional to 20,143.26, 30,236.76 and 14,861.70

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Solution

The fourth proportional to 20,143.26, 30,236.76 and 14,861.70 is: 22,308.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,143.26 : 30,236.76 = 14,861.70 : x
  2. Step 2: Convert to fraction form
    20,143.26/30,236.76 = 14,861.70/x
  3. Step 3: Cross multiply
    20,143.26x = 30,236.76 × 14,861.70
  4. Step 4: Simplify right side
    20,143.26x = 449,369,656.09
  5. Step 5: Solve for x
    x = 449,369,656.09/20,143.26
  6. Step 6: Final answer
    x = 22,308.69

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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.