Home / 21,536.42-29,720.26-12,104.99

Finding the Fourth Proportional to 21,536.42, 29,720.26 and 12,104.99

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Solution

The fourth proportional to 21,536.42, 29,720.26 and 12,104.99 is: 16,704.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,536.42 : 29,720.26 = 12,104.99 : x
  2. Step 2: Convert to fraction form
    21,536.42/29,720.26 = 12,104.99/x
  3. Step 3: Cross multiply
    21,536.42x = 29,720.26 × 12,104.99
  4. Step 4: Simplify right side
    21,536.42x = 359,763,271.23
  5. Step 5: Solve for x
    x = 359,763,271.23/21,536.42
  6. Step 6: Final answer
    x = 16,704.88

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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.