Home / 38,219.52-57,336.48-11,918.40

Finding the Fourth Proportional to 38,219.52, 57,336.48 and 11,918.40

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Solution

The fourth proportional to 38,219.52, 57,336.48 and 11,918.40 is: 17,879.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,219.52 : 57,336.48 = 11,918.40 : x
  2. Step 2: Convert to fraction form
    38,219.52/57,336.48 = 11,918.40/x
  3. Step 3: Cross multiply
    38,219.52x = 57,336.48 × 11,918.40
  4. Step 4: Simplify right side
    38,219.52x = 683,359,103.23
  5. Step 5: Solve for x
    x = 683,359,103.23/38,219.52
  6. Step 6: Final answer
    x = 17,879.85

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1.5x scale

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.