Home / 25,188.21-34,758.36-13,855.86

Finding the Fourth Proportional to 25,188.21, 34,758.36 and 13,855.86

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Solution

The fourth proportional to 25,188.21, 34,758.36 and 13,855.86 is: 19,120.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,188.21 : 34,758.36 = 13,855.86 : x
  2. Step 2: Convert to fraction form
    25,188.21/34,758.36 = 13,855.86/x
  3. Step 3: Cross multiply
    25,188.21x = 34,758.36 × 13,855.86
  4. Step 4: Simplify right side
    25,188.21x = 481,606,969.99
  5. Step 5: Solve for x
    x = 481,606,969.99/25,188.21
  6. Step 6: Final answer
    x = 19,120.33

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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.