Home / 25,523.20-38,202.88-13,647.28

Finding the Fourth Proportional to 25,523.20, 38,202.88 and 13,647.28

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Solution

The fourth proportional to 25,523.20, 38,202.88 and 13,647.28 is: 20,427.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,523.20 : 38,202.88 = 13,647.28 : x
  2. Step 2: Convert to fraction form
    25,523.20/38,202.88 = 13,647.28/x
  3. Step 3: Cross multiply
    25,523.20x = 38,202.88 × 13,647.28
  4. Step 4: Simplify right side
    25,523.20x = 521,365,400.17
  5. Step 5: Solve for x
    x = 521,365,400.17/25,523.20
  6. Step 6: Final answer
    x = 20,427.12

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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.