Home / 38,904-53,689.92-22,136.96

Finding the Fourth Proportional to 38,904, 53,689.92 and 22,136.96

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Solution

The fourth proportional to 38,904, 53,689.92 and 22,136.96 is: 30,550.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,904 : 53,689.92 = 22,136.96 : x
  2. Step 2: Convert to fraction form
    38,904/53,689.92 = 22,136.96/x
  3. Step 3: Cross multiply
    38,904x = 53,689.92 × 22,136.96
  4. Step 4: Simplify right side
    38,904x = 1,188,531,611.44
  5. Step 5: Solve for x
    x = 1,188,531,611.44/38,904
  6. Step 6: Final answer
    x = 30,550.37

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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.