Home / 25,396.88-38,109.72-13,709.84

Finding the Fourth Proportional to 25,396.88, 38,109.72 and 13,709.84

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Solution

The fourth proportional to 25,396.88, 38,109.72 and 13,709.84 is: 20,572.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,396.88 : 38,109.72 = 13,709.84 : x
  2. Step 2: Convert to fraction form
    25,396.88/38,109.72 = 13,709.84/x
  3. Step 3: Cross multiply
    25,396.88x = 38,109.72 × 13,709.84
  4. Step 4: Simplify right side
    25,396.88x = 522,478,163.64
  5. Step 5: Solve for x
    x = 522,478,163.64/25,396.88
  6. Step 6: Final answer
    x = 20,572.53

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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.