Home / 25,940.76-38,859.36-19,996.86

Finding the Fourth Proportional to 25,940.76, 38,859.36 and 19,996.86

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Solution

The fourth proportional to 25,940.76, 38,859.36 and 19,996.86 is: 29,955.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,940.76 : 38,859.36 = 19,996.86 : x
  2. Step 2: Convert to fraction form
    25,940.76/38,859.36 = 19,996.86/x
  3. Step 3: Cross multiply
    25,940.76x = 38,859.36 × 19,996.86
  4. Step 4: Simplify right side
    25,940.76x = 777,065,181.61
  5. Step 5: Solve for x
    x = 777,065,181.61/25,940.76
  6. Step 6: Final answer
    x = 29,955.37

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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.