Home / 28,383.66-39,163.50-16,446.30

Finding the Fourth Proportional to 28,383.66, 39,163.50 and 16,446.30

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Solution

The fourth proportional to 28,383.66, 39,163.50 and 16,446.30 is: 22,692.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,383.66 : 39,163.50 = 16,446.30 : x
  2. Step 2: Convert to fraction form
    28,383.66/39,163.50 = 16,446.30/x
  3. Step 3: Cross multiply
    28,383.66x = 39,163.50 × 16,446.30
  4. Step 4: Simplify right side
    28,383.66x = 644,094,670.05
  5. Step 5: Solve for x
    x = 644,094,670.05/28,383.66
  6. Step 6: Final answer
    x = 22,692.45

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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.