Home / 25,403.72-38,087.76-13,724.60

Finding the Fourth Proportional to 25,403.72, 38,087.76 and 13,724.60

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Solution

The fourth proportional to 25,403.72, 38,087.76 and 13,724.60 is: 20,577.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,403.72 : 38,087.76 = 13,724.60 : x
  2. Step 2: Convert to fraction form
    25,403.72/38,087.76 = 13,724.60/x
  3. Step 3: Cross multiply
    25,403.72x = 38,087.76 × 13,724.60
  4. Step 4: Simplify right side
    25,403.72x = 522,739,270.90
  5. Step 5: Solve for x
    x = 522,739,270.90/25,403.72
  6. Step 6: Final answer
    x = 20,577.27

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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.