Home / 25,101.12-34,638.12-13,768.36

Finding the Fourth Proportional to 25,101.12, 34,638.12 and 13,768.36

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Solution

The fourth proportional to 25,101.12, 34,638.12 and 13,768.36 is: 18,999.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,101.12 : 34,638.12 = 13,768.36 : x
  2. Step 2: Convert to fraction form
    25,101.12/34,638.12 = 13,768.36/x
  3. Step 3: Cross multiply
    25,101.12x = 34,638.12 × 13,768.36
  4. Step 4: Simplify right side
    25,101.12x = 476,910,105.88
  5. Step 5: Solve for x
    x = 476,910,105.88/25,101.12
  6. Step 6: Final answer
    x = 18,999.55

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1.5x scale

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.