Home / 25,087.60-34,620.69-13,909.60

Finding the Fourth Proportional to 25,087.60, 34,620.69 and 13,909.60

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Solution

The fourth proportional to 25,087.60, 34,620.69 and 13,909.60 is: 19,195.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,087.60 : 34,620.69 = 13,909.60 : x
  2. Step 2: Convert to fraction form
    25,087.60/34,620.69 = 13,909.60/x
  3. Step 3: Cross multiply
    25,087.60x = 34,620.69 × 13,909.60
  4. Step 4: Simplify right side
    25,087.60x = 481,559,949.62
  5. Step 5: Solve for x
    x = 481,559,949.62/25,087.60
  6. Step 6: Final answer
    x = 19,195.14

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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.