Home / 28,628.24-42,954.72-15,489.88

Finding the Fourth Proportional to 28,628.24, 42,954.72 and 15,489.88

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Solution

The fourth proportional to 28,628.24, 42,954.72 and 15,489.88 is: 23,241.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,628.24 : 42,954.72 = 15,489.88 : x
  2. Step 2: Convert to fraction form
    28,628.24/42,954.72 = 15,489.88/x
  3. Step 3: Cross multiply
    28,628.24x = 42,954.72 × 15,489.88
  4. Step 4: Simplify right side
    28,628.24x = 665,363,458.23
  5. Step 5: Solve for x
    x = 665,363,458.23/28,628.24
  6. Step 6: Final answer
    x = 23,241.51

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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.