Home / 25,972.88-38,922.36-20,102

Finding the Fourth Proportional to 25,972.88, 38,922.36 and 20,102

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Solution

The fourth proportional to 25,972.88, 38,922.36 and 20,102 is: 30,124.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,972.88 : 38,922.36 = 20,102 : x
  2. Step 2: Convert to fraction form
    25,972.88/38,922.36 = 20,102/x
  3. Step 3: Cross multiply
    25,972.88x = 38,922.36 × 20,102
  4. Step 4: Simplify right side
    25,972.88x = 782,417,280.72
  5. Step 5: Solve for x
    x = 782,417,280.72/25,972.88
  6. Step 6: Final answer
    x = 30,124.39

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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.