Home / 28,286.18-42,394.43-11,635.82

Finding the Fourth Proportional to 28,286.18, 42,394.43 and 11,635.82

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Solution

The fourth proportional to 28,286.18, 42,394.43 and 11,635.82 is: 17,439.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,286.18 : 42,394.43 = 11,635.82 : x
  2. Step 2: Convert to fraction form
    28,286.18/42,394.43 = 11,635.82/x
  3. Step 3: Cross multiply
    28,286.18x = 42,394.43 × 11,635.82
  4. Step 4: Simplify right side
    28,286.18x = 493,293,956.48
  5. Step 5: Solve for x
    x = 493,293,956.48/28,286.18
  6. Step 6: Final answer
    x = 17,439.40

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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.