Home / 25,728.89-38,608.11-13,882.64

Finding the Fourth Proportional to 25,728.89, 38,608.11 and 13,882.64

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Solution

The fourth proportional to 25,728.89, 38,608.11 and 13,882.64 is: 20,831.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,728.89 : 38,608.11 = 13,882.64 : x
  2. Step 2: Convert to fraction form
    25,728.89/38,608.11 = 13,882.64/x
  3. Step 3: Cross multiply
    25,728.89x = 38,608.11 × 13,882.64
  4. Step 4: Simplify right side
    25,728.89x = 535,982,299.17
  5. Step 5: Solve for x
    x = 535,982,299.17/25,728.89
  6. Step 6: Final answer
    x = 20,831.93

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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.