Home / 20,311.64-28,025.52-11,810.96

Finding the Fourth Proportional to 20,311.64, 28,025.52 and 11,810.96

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Solution

The fourth proportional to 20,311.64, 28,025.52 and 11,810.96 is: 16,296.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,311.64 : 28,025.52 = 11,810.96 : x
  2. Step 2: Convert to fraction form
    20,311.64/28,025.52 = 11,810.96/x
  3. Step 3: Cross multiply
    20,311.64x = 28,025.52 × 11,810.96
  4. Step 4: Simplify right side
    20,311.64x = 331,008,295.70
  5. Step 5: Solve for x
    x = 331,008,295.70/20,311.64
  6. Step 6: Final answer
    x = 16,296.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.