Home / 25,811.88-38,728.71-14,111.43

Finding the Fourth Proportional to 25,811.88, 38,728.71 and 14,111.43

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Solution

The fourth proportional to 25,811.88, 38,728.71 and 14,111.43 is: 21,173.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,811.88 : 38,728.71 = 14,111.43 : x
  2. Step 2: Convert to fraction form
    25,811.88/38,728.71 = 14,111.43/x
  3. Step 3: Cross multiply
    25,811.88x = 38,728.71 × 14,111.43
  4. Step 4: Simplify right side
    25,811.88x = 546,517,480.16
  5. Step 5: Solve for x
    x = 546,517,480.16/25,811.88
  6. Step 6: Final answer
    x = 21,173.10

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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.