Home / 38,880.78-58,311.44-11,178.78

Finding the Fourth Proportional to 38,880.78, 58,311.44 and 11,178.78

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Solution

The fourth proportional to 38,880.78, 58,311.44 and 11,178.78 is: 16,765.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,880.78 : 58,311.44 = 11,178.78 : x
  2. Step 2: Convert to fraction form
    38,880.78/58,311.44 = 11,178.78/x
  3. Step 3: Cross multiply
    38,880.78x = 58,311.44 × 11,178.78
  4. Step 4: Simplify right side
    38,880.78x = 651,850,759.24
  5. Step 5: Solve for x
    x = 651,850,759.24/38,880.78
  6. Step 6: Final answer
    x = 16,765.37

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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.