Home / 39,639.58-54,701.44-21,733.98

Finding the Fourth Proportional to 39,639.58, 54,701.44 and 21,733.98

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Solution

The fourth proportional to 39,639.58, 54,701.44 and 21,733.98 is: 29,992.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,639.58 : 54,701.44 = 21,733.98 : x
  2. Step 2: Convert to fraction form
    39,639.58/54,701.44 = 21,733.98/x
  3. Step 3: Cross multiply
    39,639.58x = 54,701.44 × 21,733.98
  4. Step 4: Simplify right side
    39,639.58x = 1,188,879,743.47
  5. Step 5: Solve for x
    x = 1,188,879,743.47/39,639.58
  6. Step 6: Final answer
    x = 29,992.24

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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.