Home / 25,408.00-38,135.40-12,936.94

Finding the Fourth Proportional to 25,408.00, 38,135.40 and 12,936.94

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Solution

The fourth proportional to 25,408.00, 38,135.40 and 12,936.94 is: 19,417.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,408.00 : 38,135.40 = 12,936.94 : x
  2. Step 2: Convert to fraction form
    25,408.00/38,135.40 = 12,936.94/x
  3. Step 3: Cross multiply
    25,408.00x = 38,135.40 × 12,936.94
  4. Step 4: Simplify right side
    25,408.00x = 493,355,237.82
  5. Step 5: Solve for x
    x = 493,355,237.82/25,408.00
  6. Step 6: Final answer
    x = 19,417.32

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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.