Home / 28,905.30-43,372.35-16,434.90

Finding the Fourth Proportional to 28,905.30, 43,372.35 and 16,434.90

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Solution

The fourth proportional to 28,905.30, 43,372.35 and 16,434.90 is: 24,660.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,905.30 : 43,372.35 = 16,434.90 : x
  2. Step 2: Convert to fraction form
    28,905.30/43,372.35 = 16,434.90/x
  3. Step 3: Cross multiply
    28,905.30x = 43,372.35 × 16,434.90
  4. Step 4: Simplify right side
    28,905.30x = 712,820,235.02
  5. Step 5: Solve for x
    x = 712,820,235.02/28,905.30
  6. Step 6: Final answer
    x = 24,660.54

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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.