Home / 19,950.21-27,542.39-15,692.85

Finding the Fourth Proportional to 19,950.21, 27,542.39 and 15,692.85

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Solution

The fourth proportional to 19,950.21, 27,542.39 and 15,692.85 is: 21,664.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,950.21 : 27,542.39 = 15,692.85 : x
  2. Step 2: Convert to fraction form
    19,950.21/27,542.39 = 15,692.85/x
  3. Step 3: Cross multiply
    19,950.21x = 27,542.39 × 15,692.85
  4. Step 4: Simplify right side
    19,950.21x = 432,218,516.45
  5. Step 5: Solve for x
    x = 432,218,516.45/19,950.21
  6. Step 6: Final answer
    x = 21,664.86

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1.5x scale

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.