Home / 28,882.72-43,305.40-18,992.04

Finding the Fourth Proportional to 28,882.72, 43,305.40 and 18,992.04

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Solution

The fourth proportional to 28,882.72, 43,305.40 and 18,992.04 is: 28,475.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,882.72 : 43,305.40 = 18,992.04 : x
  2. Step 2: Convert to fraction form
    28,882.72/43,305.40 = 18,992.04/x
  3. Step 3: Cross multiply
    28,882.72x = 43,305.40 × 18,992.04
  4. Step 4: Simplify right side
    28,882.72x = 822,457,889.02
  5. Step 5: Solve for x
    x = 822,457,889.02/28,882.72
  6. Step 6: Final answer
    x = 28,475.78

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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.