Home / 21,408.99-29,543.80-11,849.27

Finding the Fourth Proportional to 21,408.99, 29,543.80 and 11,849.27

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Solution

The fourth proportional to 21,408.99, 29,543.80 and 11,849.27 is: 16,351.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,408.99 : 29,543.80 = 11,849.27 : x
  2. Step 2: Convert to fraction form
    21,408.99/29,543.80 = 11,849.27/x
  3. Step 3: Cross multiply
    21,408.99x = 29,543.80 × 11,849.27
  4. Step 4: Simplify right side
    21,408.99x = 350,072,403.78
  5. Step 5: Solve for x
    x = 350,072,403.78/21,408.99
  6. Step 6: Final answer
    x = 16,351.65

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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.