Home / 25,811.48-38,728.16-14,111.03

Finding the Fourth Proportional to 25,811.48, 38,728.16 and 14,111.03

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Solution

The fourth proportional to 25,811.48, 38,728.16 and 14,111.03 is: 21,172.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,811.48 : 38,728.16 = 14,111.03 : x
  2. Step 2: Convert to fraction form
    25,811.48/38,728.16 = 14,111.03/x
  3. Step 3: Cross multiply
    25,811.48x = 38,728.16 × 14,111.03
  4. Step 4: Simplify right side
    25,811.48x = 546,494,359.70
  5. Step 5: Solve for x
    x = 546,494,359.70/25,811.48
  6. Step 6: Final answer
    x = 21,172.53

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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.