Home / 20,153.38-30,245.81-13,956.82

Finding the Fourth Proportional to 20,153.38, 30,245.81 and 13,956.82

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Solution

The fourth proportional to 20,153.38, 30,245.81 and 13,956.82 is: 20,946.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,153.38 : 30,245.81 = 13,956.82 : x
  2. Step 2: Convert to fraction form
    20,153.38/30,245.81 = 13,956.82/x
  3. Step 3: Cross multiply
    20,153.38x = 30,245.81 × 13,956.82
  4. Step 4: Simplify right side
    20,153.38x = 422,135,325.92
  5. Step 5: Solve for x
    x = 422,135,325.92/20,153.38
  6. Step 6: Final answer
    x = 20,946.13

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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.