Home / 20,325.28-28,046.10-11,826.76

Finding the Fourth Proportional to 20,325.28, 28,046.10 and 11,826.76

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Solution

The fourth proportional to 20,325.28, 28,046.10 and 11,826.76 is: 16,319.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,325.28 : 28,046.10 = 11,826.76 : x
  2. Step 2: Convert to fraction form
    20,325.28/28,046.10 = 11,826.76/x
  3. Step 3: Cross multiply
    20,325.28x = 28,046.10 × 11,826.76
  4. Step 4: Simplify right side
    20,325.28x = 331,694,493.64
  5. Step 5: Solve for x
    x = 331,694,493.64/20,325.28
  6. Step 6: Final answer
    x = 16,319.31

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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.