Home / 25,755.58-38,650.70-9,115.56

Finding the Fourth Proportional to 25,755.58, 38,650.70 and 9,115.56

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Solution

The fourth proportional to 25,755.58, 38,650.70 and 9,115.56 is: 13,679.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,755.58 : 38,650.70 = 9,115.56 : x
  2. Step 2: Convert to fraction form
    25,755.58/38,650.70 = 9,115.56/x
  3. Step 3: Cross multiply
    25,755.58x = 38,650.70 × 9,115.56
  4. Step 4: Simplify right side
    25,755.58x = 352,322,774.89
  5. Step 5: Solve for x
    x = 352,322,774.89/25,755.58
  6. Step 6: Final answer
    x = 13,679.47

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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.