Home / 28,800.96-43,218.24-15,654.72

Finding the Fourth Proportional to 28,800.96, 43,218.24 and 15,654.72

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Solution

The fourth proportional to 28,800.96, 43,218.24 and 15,654.72 is: 23,491.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,800.96 : 43,218.24 = 15,654.72 : x
  2. Step 2: Convert to fraction form
    28,800.96/43,218.24 = 15,654.72/x
  3. Step 3: Cross multiply
    28,800.96x = 43,218.24 × 15,654.72
  4. Step 4: Simplify right side
    28,800.96x = 676,569,446.09
  5. Step 5: Solve for x
    x = 676,569,446.09/28,800.96
  6. Step 6: Final answer
    x = 23,491.21

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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.