Home / 20,310.05-30,465.21-13,295.96

Finding the Fourth Proportional to 20,310.05, 30,465.21 and 13,295.96

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Solution

The fourth proportional to 20,310.05, 30,465.21 and 13,295.96 is: 19,944.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,310.05 : 30,465.21 = 13,295.96 : x
  2. Step 2: Convert to fraction form
    20,310.05/30,465.21 = 13,295.96/x
  3. Step 3: Cross multiply
    20,310.05x = 30,465.21 × 13,295.96
  4. Step 4: Simplify right side
    20,310.05x = 405,064,213.55
  5. Step 5: Solve for x
    x = 405,064,213.55/20,310.05
  6. Step 6: Final answer
    x = 19,944.03

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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.