Home / 28,579.48-42,871.26-9,859.24

Finding the Fourth Proportional to 28,579.48, 42,871.26 and 9,859.24

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Solution

The fourth proportional to 28,579.48, 42,871.26 and 9,859.24 is: 14,789.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,579.48 : 42,871.26 = 9,859.24 : x
  2. Step 2: Convert to fraction form
    28,579.48/42,871.26 = 9,859.24/x
  3. Step 3: Cross multiply
    28,579.48x = 42,871.26 × 9,859.24
  4. Step 4: Simplify right side
    28,579.48x = 422,678,041.44
  5. Step 5: Solve for x
    x = 422,678,041.44/28,579.48
  6. Step 6: Final answer
    x = 14,789.56

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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.