Home / 21,396.24-29,527.20-11,964.60

Finding the Fourth Proportional to 21,396.24, 29,527.20 and 11,964.60

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Solution

The fourth proportional to 21,396.24, 29,527.20 and 11,964.60 is: 16,511.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,396.24 : 29,527.20 = 11,964.60 : x
  2. Step 2: Convert to fraction form
    21,396.24/29,527.20 = 11,964.60/x
  3. Step 3: Cross multiply
    21,396.24x = 29,527.20 × 11,964.60
  4. Step 4: Simplify right side
    21,396.24x = 353,281,137.12
  5. Step 5: Solve for x
    x = 353,281,137.12/21,396.24
  6. Step 6: Final answer
    x = 16,511.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.