Home / 21,692.43-29,935.17-12,260.79

Finding the Fourth Proportional to 21,692.43, 29,935.17 and 12,260.79

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Solution

The fourth proportional to 21,692.43, 29,935.17 and 12,260.79 is: 16,919.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,692.43 : 29,935.17 = 12,260.79 : x
  2. Step 2: Convert to fraction form
    21,692.43/29,935.17 = 12,260.79/x
  3. Step 3: Cross multiply
    21,692.43x = 29,935.17 × 12,260.79
  4. Step 4: Simplify right side
    21,692.43x = 367,028,832.98
  5. Step 5: Solve for x
    x = 367,028,832.98/21,692.43
  6. Step 6: Final answer
    x = 16,919.67

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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.