Home / 21,404.88-29,538.66-11,973.42

Finding the Fourth Proportional to 21,404.88, 29,538.66 and 11,973.42

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Solution

The fourth proportional to 21,404.88, 29,538.66 and 11,973.42 is: 16,523.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,404.88 : 29,538.66 = 11,973.42 : x
  2. Step 2: Convert to fraction form
    21,404.88/29,538.66 = 11,973.42/x
  3. Step 3: Cross multiply
    21,404.88x = 29,538.66 × 11,973.42
  4. Step 4: Simplify right side
    21,404.88x = 353,678,782.42
  5. Step 5: Solve for x
    x = 353,678,782.42/21,404.88
  6. Step 6: Final answer
    x = 16,523.28

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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.