Home / 38,512.29-57,720.72-21,821.76

Finding the Fourth Proportional to 38,512.29, 57,720.72 and 21,821.76

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Solution

The fourth proportional to 38,512.29, 57,720.72 and 21,821.76 is: 32,705.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,512.29 : 57,720.72 = 21,821.76 : x
  2. Step 2: Convert to fraction form
    38,512.29/57,720.72 = 21,821.76/x
  3. Step 3: Cross multiply
    38,512.29x = 57,720.72 × 21,821.76
  4. Step 4: Simplify right side
    38,512.29x = 1,259,567,698.87
  5. Step 5: Solve for x
    x = 1,259,567,698.87/38,512.29
  6. Step 6: Final answer
    x = 32,705.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.