Home / 25,972.40-38,843.40-21,825.20

Finding the Fourth Proportional to 25,972.40, 38,843.40 and 21,825.20

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Solution

The fourth proportional to 25,972.40, 38,843.40 and 21,825.20 is: 32,640.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,972.40 : 38,843.40 = 21,825.20 : x
  2. Step 2: Convert to fraction form
    25,972.40/38,843.40 = 21,825.20/x
  3. Step 3: Cross multiply
    25,972.40x = 38,843.40 × 21,825.20
  4. Step 4: Simplify right side
    25,972.40x = 847,764,973.68
  5. Step 5: Solve for x
    x = 847,764,973.68/25,972.40
  6. Step 6: Final answer
    x = 32,640.99

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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.