Home / 28,898.64-43,335.72-9,171.90

Finding the Fourth Proportional to 28,898.64, 43,335.72 and 9,171.90

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Solution

The fourth proportional to 28,898.64, 43,335.72 and 9,171.90 is: 13,753.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,898.64 : 43,335.72 = 9,171.90 : x
  2. Step 2: Convert to fraction form
    28,898.64/43,335.72 = 9,171.90/x
  3. Step 3: Cross multiply
    28,898.64x = 43,335.72 × 9,171.90
  4. Step 4: Simplify right side
    28,898.64x = 397,470,890.27
  5. Step 5: Solve for x
    x = 397,470,890.27/28,898.64
  6. Step 6: Final answer
    x = 13,753.97

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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.