Home / 15,620.80-23,431.20-11,265.88

Finding the Fourth Proportional to 15,620.80, 23,431.20 and 11,265.88

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Solution

The fourth proportional to 15,620.80, 23,431.20 and 11,265.88 is: 16,898.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,620.80 : 23,431.20 = 11,265.88 : x
  2. Step 2: Convert to fraction form
    15,620.80/23,431.20 = 11,265.88/x
  3. Step 3: Cross multiply
    15,620.80x = 23,431.20 × 11,265.88
  4. Step 4: Simplify right side
    15,620.80x = 263,973,087.46
  5. Step 5: Solve for x
    x = 263,973,087.46/15,620.80
  6. Step 6: Final answer
    x = 16,898.82

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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.