Home / 28,915.98-43,347.69-11,135.31

Finding the Fourth Proportional to 28,915.98, 43,347.69 and 11,135.31

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Solution

The fourth proportional to 28,915.98, 43,347.69 and 11,135.31 is: 16,692.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,915.98 : 43,347.69 = 11,135.31 : x
  2. Step 2: Convert to fraction form
    28,915.98/43,347.69 = 11,135.31/x
  3. Step 3: Cross multiply
    28,915.98x = 43,347.69 × 11,135.31
  4. Step 4: Simplify right side
    28,915.98x = 482,689,965.93
  5. Step 5: Solve for x
    x = 482,689,965.93/28,915.98
  6. Step 6: Final answer
    x = 16,692.84

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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.