Home / 38,139.60-57,214.80-11,841.60

Finding the Fourth Proportional to 38,139.60, 57,214.80 and 11,841.60

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Solution

The fourth proportional to 38,139.60, 57,214.80 and 11,841.60 is: 17,764.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,139.60 : 57,214.80 = 11,841.60 : x
  2. Step 2: Convert to fraction form
    38,139.60/57,214.80 = 11,841.60/x
  3. Step 3: Cross multiply
    38,139.60x = 57,214.80 × 11,841.60
  4. Step 4: Simplify right side
    38,139.60x = 677,514,775.68
  5. Step 5: Solve for x
    x = 677,514,775.68/38,139.60
  6. Step 6: Final answer
    x = 17,764.08

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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.