Home / 25,451.28-38,135.88-13,770

Finding the Fourth Proportional to 25,451.28, 38,135.88 and 13,770

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Solution

The fourth proportional to 25,451.28, 38,135.88 and 13,770 is: 20,632.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,451.28 : 38,135.88 = 13,770 : x
  2. Step 2: Convert to fraction form
    25,451.28/38,135.88 = 13,770/x
  3. Step 3: Cross multiply
    25,451.28x = 38,135.88 × 13,770
  4. Step 4: Simplify right side
    25,451.28x = 525,131,067.60
  5. Step 5: Solve for x
    x = 525,131,067.60/25,451.28
  6. Step 6: Final answer
    x = 20,632.80

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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.