Home / 25,474.88-38,212.60-7,705.72

Finding the Fourth Proportional to 25,474.88, 38,212.60 and 7,705.72

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Solution

The fourth proportional to 25,474.88, 38,212.60 and 7,705.72 is: 11,558.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,474.88 : 38,212.60 = 7,705.72 : x
  2. Step 2: Convert to fraction form
    25,474.88/38,212.60 = 7,705.72/x
  3. Step 3: Cross multiply
    25,474.88x = 38,212.60 × 7,705.72
  4. Step 4: Simplify right side
    25,474.88x = 294,455,596.07
  5. Step 5: Solve for x
    x = 294,455,596.07/25,474.88
  6. Step 6: Final answer
    x = 11,558.66

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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.