Home / 28,869.24-43,305.06-9,147.36

Finding the Fourth Proportional to 28,869.24, 43,305.06 and 9,147.36

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Solution

The fourth proportional to 28,869.24, 43,305.06 and 9,147.36 is: 13,721.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,869.24 : 43,305.06 = 9,147.36 : x
  2. Step 2: Convert to fraction form
    28,869.24/43,305.06 = 9,147.36/x
  3. Step 3: Cross multiply
    28,869.24x = 43,305.06 × 9,147.36
  4. Step 4: Simplify right side
    28,869.24x = 396,126,973.64
  5. Step 5: Solve for x
    x = 396,126,973.64/28,869.24
  6. Step 6: Final answer
    x = 13,721.42

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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.