Home / 25,927.68-38,882.86-10,128.61

Finding the Fourth Proportional to 25,927.68, 38,882.86 and 10,128.61

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Solution

The fourth proportional to 25,927.68, 38,882.86 and 10,128.61 is: 15,189.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,927.68 : 38,882.86 = 10,128.61 : x
  2. Step 2: Convert to fraction form
    25,927.68/38,882.86 = 10,128.61/x
  3. Step 3: Cross multiply
    25,927.68x = 38,882.86 × 10,128.61
  4. Step 4: Simplify right side
    25,927.68x = 393,829,324.62
  5. Step 5: Solve for x
    x = 393,829,324.62/25,927.68
  6. Step 6: Final answer
    x = 15,189.53

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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.