Home / 21,839.70-32,759.55-8,692.05

Finding the Fourth Proportional to 21,839.70, 32,759.55 and 8,692.05

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Solution

The fourth proportional to 21,839.70, 32,759.55 and 8,692.05 is: 13,038.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,839.70 : 32,759.55 = 8,692.05 : x
  2. Step 2: Convert to fraction form
    21,839.70/32,759.55 = 8,692.05/x
  3. Step 3: Cross multiply
    21,839.70x = 32,759.55 × 8,692.05
  4. Step 4: Simplify right side
    21,839.70x = 284,747,646.58
  5. Step 5: Solve for x
    x = 284,747,646.58/21,839.70
  6. Step 6: Final answer
    x = 13,038.08

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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.