Home / 28,318.94-42,494.79-11,675.87

Finding the Fourth Proportional to 28,318.94, 42,494.79 and 11,675.87

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Solution

The fourth proportional to 28,318.94, 42,494.79 and 11,675.87 is: 17,520.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,318.94 : 42,494.79 = 11,675.87 : x
  2. Step 2: Convert to fraction form
    28,318.94/42,494.79 = 11,675.87/x
  3. Step 3: Cross multiply
    28,318.94x = 42,494.79 × 11,675.87
  4. Step 4: Simplify right side
    28,318.94x = 496,163,643.72
  5. Step 5: Solve for x
    x = 496,163,643.72/28,318.94
  6. Step 6: Final answer
    x = 17,520.56

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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.