Home / 25,794.42-38,639.79-13,456.50

Finding the Fourth Proportional to 25,794.42, 38,639.79 and 13,456.50

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Solution

The fourth proportional to 25,794.42, 38,639.79 and 13,456.50 is: 20,157.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,794.42 : 38,639.79 = 13,456.50 : x
  2. Step 2: Convert to fraction form
    25,794.42/38,639.79 = 13,456.50/x
  3. Step 3: Cross multiply
    25,794.42x = 38,639.79 × 13,456.50
  4. Step 4: Simplify right side
    25,794.42x = 519,956,334.14
  5. Step 5: Solve for x
    x = 519,956,334.14/25,794.42
  6. Step 6: Final answer
    x = 20,157.71

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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.