Home / 39,449.82-54,441-21,544.92

Finding the Fourth Proportional to 39,449.82, 54,441 and 21,544.92

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Solution

The fourth proportional to 39,449.82, 54,441 and 21,544.92 is: 29,732.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,449.82 : 54,441 = 21,544.92 : x
  2. Step 2: Convert to fraction form
    39,449.82/54,441 = 21,544.92/x
  3. Step 3: Cross multiply
    39,449.82x = 54,441 × 21,544.92
  4. Step 4: Simplify right side
    39,449.82x = 1,172,926,989.72
  5. Step 5: Solve for x
    x = 1,172,926,989.72/39,449.82
  6. Step 6: Final answer
    x = 29,732.13

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.