Home / 21,167.72-29,211.78-11,608.48

Finding the Fourth Proportional to 21,167.72, 29,211.78 and 11,608.48

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Solution

The fourth proportional to 21,167.72, 29,211.78 and 11,608.48 is: 16,019.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,167.72 : 29,211.78 = 11,608.48 : x
  2. Step 2: Convert to fraction form
    21,167.72/29,211.78 = 11,608.48/x
  3. Step 3: Cross multiply
    21,167.72x = 29,211.78 × 11,608.48
  4. Step 4: Simplify right side
    21,167.72x = 339,104,363.89
  5. Step 5: Solve for x
    x = 339,104,363.89/21,167.72
  6. Step 6: Final answer
    x = 16,019.88

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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.