Home / 26,629.92-39,933.28-14,147.20

Finding the Fourth Proportional to 26,629.92, 39,933.28 and 14,147.20

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Solution

The fourth proportional to 26,629.92, 39,933.28 and 14,147.20 is: 21,214.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,629.92 : 39,933.28 = 14,147.20 : x
  2. Step 2: Convert to fraction form
    26,629.92/39,933.28 = 14,147.20/x
  3. Step 3: Cross multiply
    26,629.92x = 39,933.28 × 14,147.20
  4. Step 4: Simplify right side
    26,629.92x = 564,944,098.82
  5. Step 5: Solve for x
    x = 564,944,098.82/26,629.92
  6. Step 6: Final answer
    x = 21,214.64

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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.