Home / 28,474.70-42,712.20-18,676.04

Finding the Fourth Proportional to 28,474.70, 42,712.20 and 18,676.04

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Solution

The fourth proportional to 28,474.70, 42,712.20 and 18,676.04 is: 28,014.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,474.70 : 42,712.20 = 18,676.04 : x
  2. Step 2: Convert to fraction form
    28,474.70/42,712.20 = 18,676.04/x
  3. Step 3: Cross multiply
    28,474.70x = 42,712.20 × 18,676.04
  4. Step 4: Simplify right side
    28,474.70x = 797,694,542.13
  5. Step 5: Solve for x
    x = 797,694,542.13/28,474.70
  6. Step 6: Final answer
    x = 28,014.16

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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.