Home / 19,692.05-29,507.12-12,285.41

Finding the Fourth Proportional to 19,692.05, 29,507.12 and 12,285.41

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Solution

The fourth proportional to 19,692.05, 29,507.12 and 12,285.41 is: 18,408.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,692.05 : 29,507.12 = 12,285.41 : x
  2. Step 2: Convert to fraction form
    19,692.05/29,507.12 = 12,285.41/x
  3. Step 3: Cross multiply
    19,692.05x = 29,507.12 × 12,285.41
  4. Step 4: Simplify right side
    19,692.05x = 362,507,005.69
  5. Step 5: Solve for x
    x = 362,507,005.69/19,692.05
  6. Step 6: Final answer
    x = 18,408.80

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1.5x scale

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.