Home / 39,456.63-54,450.57-21,552.15

Finding the Fourth Proportional to 39,456.63, 54,450.57 and 21,552.15

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Solution

The fourth proportional to 39,456.63, 54,450.57 and 21,552.15 is: 29,742.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,456.63 : 54,450.57 = 21,552.15 : x
  2. Step 2: Convert to fraction form
    39,456.63/54,450.57 = 21,552.15/x
  3. Step 3: Cross multiply
    39,456.63x = 54,450.57 × 21,552.15
  4. Step 4: Simplify right side
    39,456.63x = 1,173,526,852.23
  5. Step 5: Solve for x
    x = 1,173,526,852.23/39,456.63
  6. Step 6: Final answer
    x = 29,742.20

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Find fourth proportional to 39,457.63, 54,451.95 and 21,553.15
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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.