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Finding the Fourth Proportional to 38,585.58, 57,879.58 and 13,284.82

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Solution

The fourth proportional to 38,585.58, 57,879.58 and 13,284.82 is: 19,927.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,585.58 : 57,879.58 = 13,284.82 : x
  2. Step 2: Convert to fraction form
    38,585.58/57,879.58 = 13,284.82/x
  3. Step 3: Cross multiply
    38,585.58x = 57,879.58 × 13,284.82
  4. Step 4: Simplify right side
    38,585.58x = 768,919,801.98
  5. Step 5: Solve for x
    x = 768,919,801.98/38,585.58
  6. Step 6: Final answer
    x = 19,927.65

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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.