Home / 38,676.75-53,371.04-21,909.39

Finding the Fourth Proportional to 38,676.75, 53,371.04 and 21,909.39

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Solution

The fourth proportional to 38,676.75, 53,371.04 and 21,909.39 is: 30,233.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,676.75 : 53,371.04 = 21,909.39 : x
  2. Step 2: Convert to fraction form
    38,676.75/53,371.04 = 21,909.39/x
  3. Step 3: Cross multiply
    38,676.75x = 53,371.04 × 21,909.39
  4. Step 4: Simplify right side
    38,676.75x = 1,169,326,820.52
  5. Step 5: Solve for x
    x = 1,169,326,820.52/38,676.75
  6. Step 6: Final answer
    x = 30,233.33

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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.