Home / 25,767.72-38,669.40-10,186.56

Finding the Fourth Proportional to 25,767.72, 38,669.40 and 10,186.56

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Solution

The fourth proportional to 25,767.72, 38,669.40 and 10,186.56 is: 15,286.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,767.72 : 38,669.40 = 10,186.56 : x
  2. Step 2: Convert to fraction form
    25,767.72/38,669.40 = 10,186.56/x
  3. Step 3: Cross multiply
    25,767.72x = 38,669.40 × 10,186.56
  4. Step 4: Simplify right side
    25,767.72x = 393,908,163.26
  5. Step 5: Solve for x
    x = 393,908,163.26/25,767.72
  6. Step 6: Final answer
    x = 15,286.88

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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.