Home / 28,905.10-43,346.85-11,371.30

Finding the Fourth Proportional to 28,905.10, 43,346.85 and 11,371.30

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Solution

The fourth proportional to 28,905.10, 43,346.85 and 11,371.30 is: 17,052.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,905.10 : 43,346.85 = 11,371.30 : x
  2. Step 2: Convert to fraction form
    28,905.10/43,346.85 = 11,371.30/x
  3. Step 3: Cross multiply
    28,905.10x = 43,346.85 × 11,371.30
  4. Step 4: Simplify right side
    28,905.10x = 492,910,035.41
  5. Step 5: Solve for x
    x = 492,910,035.41/28,905.10
  6. Step 6: Final answer
    x = 17,052.70

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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.