Home / 21,396.04-29,527.89-11,964.64

Finding the Fourth Proportional to 21,396.04, 29,527.89 and 11,964.64

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Solution

The fourth proportional to 21,396.04, 29,527.89 and 11,964.64 is: 16,511.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,396.04 : 29,527.89 = 11,964.64 : x
  2. Step 2: Convert to fraction form
    21,396.04/29,527.89 = 11,964.64/x
  3. Step 3: Cross multiply
    21,396.04x = 29,527.89 × 11,964.64
  4. Step 4: Simplify right side
    21,396.04x = 353,290,573.81
  5. Step 5: Solve for x
    x = 353,290,573.81/21,396.04
  6. Step 6: Final answer
    x = 16,511.96

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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.