Home / 25,380.78-35,026.41-13,896.49

Finding the Fourth Proportional to 25,380.78, 35,026.41 and 13,896.49

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Solution

The fourth proportional to 25,380.78, 35,026.41 and 13,896.49 is: 19,177.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,380.78 : 35,026.41 = 13,896.49 : x
  2. Step 2: Convert to fraction form
    25,380.78/35,026.41 = 13,896.49/x
  3. Step 3: Cross multiply
    25,380.78x = 35,026.41 × 13,896.49
  4. Step 4: Simplify right side
    25,380.78x = 486,744,156.30
  5. Step 5: Solve for x
    x = 486,744,156.30/25,380.78
  6. Step 6: Final answer
    x = 19,177.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.