Home / 25,635.70-38,439.84-13,150.62

Finding the Fourth Proportional to 25,635.70, 38,439.84 and 13,150.62

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Solution

The fourth proportional to 25,635.70, 38,439.84 and 13,150.62 is: 19,718.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,635.70 : 38,439.84 = 13,150.62 : x
  2. Step 2: Convert to fraction form
    25,635.70/38,439.84 = 13,150.62/x
  3. Step 3: Cross multiply
    25,635.70x = 38,439.84 × 13,150.62
  4. Step 4: Simplify right side
    25,635.70x = 505,507,728.70
  5. Step 5: Solve for x
    x = 505,507,728.70/25,635.70
  6. Step 6: Final answer
    x = 19,718.90

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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.