Home / 38,434.22-57,649.25-11,780.30

Finding the Fourth Proportional to 38,434.22, 57,649.25 and 11,780.30

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Solution

The fourth proportional to 38,434.22, 57,649.25 and 11,780.30 is: 17,669.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,434.22 : 57,649.25 = 11,780.30 : x
  2. Step 2: Convert to fraction form
    38,434.22/57,649.25 = 11,780.30/x
  3. Step 3: Cross multiply
    38,434.22x = 57,649.25 × 11,780.30
  4. Step 4: Simplify right side
    38,434.22x = 679,125,112.63
  5. Step 5: Solve for x
    x = 679,125,112.63/38,434.22
  6. Step 6: Final answer
    x = 17,669.81

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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.