Home / 38,782.88-58,177.32-12,488.42

Finding the Fourth Proportional to 38,782.88, 58,177.32 and 12,488.42

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Solution

The fourth proportional to 38,782.88, 58,177.32 and 12,488.42 is: 18,733.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,782.88 : 58,177.32 = 12,488.42 : x
  2. Step 2: Convert to fraction form
    38,782.88/58,177.32 = 12,488.42/x
  3. Step 3: Cross multiply
    38,782.88x = 58,177.32 × 12,488.42
  4. Step 4: Simplify right side
    38,782.88x = 726,542,806.63
  5. Step 5: Solve for x
    x = 726,542,806.63/38,782.88
  6. Step 6: Final answer
    x = 18,733.60

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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.