Home / 21,396.28-32,085.24-7,357.72

Finding the Fourth Proportional to 21,396.28, 32,085.24 and 7,357.72

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Solution

The fourth proportional to 21,396.28, 32,085.24 and 7,357.72 is: 11,033.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,396.28 : 32,085.24 = 7,357.72 : x
  2. Step 2: Convert to fraction form
    21,396.28/32,085.24 = 7,357.72/x
  3. Step 3: Cross multiply
    21,396.28x = 32,085.24 × 7,357.72
  4. Step 4: Simplify right side
    21,396.28x = 236,074,212.05
  5. Step 5: Solve for x
    x = 236,074,212.05/21,396.28
  6. Step 6: Final answer
    x = 11,033.42

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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.