Home / 25,704.75-38,539.56-13,698.71

Finding the Fourth Proportional to 25,704.75, 38,539.56 and 13,698.71

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Solution

The fourth proportional to 25,704.75, 38,539.56 and 13,698.71 is: 20,538.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,704.75 : 38,539.56 = 13,698.71 : x
  2. Step 2: Convert to fraction form
    25,704.75/38,539.56 = 13,698.71/x
  3. Step 3: Cross multiply
    25,704.75x = 38,539.56 × 13,698.71
  4. Step 4: Simplify right side
    25,704.75x = 527,942,352.32
  5. Step 5: Solve for x
    x = 527,942,352.32/25,704.75
  6. Step 6: Final answer
    x = 20,538.71

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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.