Home / 28,692.90-39,586.32-17,930.43

Finding the Fourth Proportional to 28,692.90, 39,586.32 and 17,930.43

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Solution

The fourth proportional to 28,692.90, 39,586.32 and 17,930.43 is: 24,737.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,692.90 : 39,586.32 = 17,930.43 : x
  2. Step 2: Convert to fraction form
    28,692.90/39,586.32 = 17,930.43/x
  3. Step 3: Cross multiply
    28,692.90x = 39,586.32 × 17,930.43
  4. Step 4: Simplify right side
    28,692.90x = 709,799,739.72
  5. Step 5: Solve for x
    x = 709,799,739.72/28,692.90
  6. Step 6: Final answer
    x = 24,737.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.