Home / 25,087.89-34,613.41-15,661.92

Finding the Fourth Proportional to 25,087.89, 34,613.41 and 15,661.92

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Solution

The fourth proportional to 25,087.89, 34,613.41 and 15,661.92 is: 21,608.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,087.89 : 34,613.41 = 15,661.92 : x
  2. Step 2: Convert to fraction form
    25,087.89/34,613.41 = 15,661.92/x
  3. Step 3: Cross multiply
    25,087.89x = 34,613.41 × 15,661.92
  4. Step 4: Simplify right side
    25,087.89x = 542,112,458.35
  5. Step 5: Solve for x
    x = 542,112,458.35/25,087.89
  6. Step 6: Final answer
    x = 21,608.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.