Home / 21,177-29,224.26-11,747.52

Finding the Fourth Proportional to 21,177, 29,224.26 and 11,747.52

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Solution

The fourth proportional to 21,177, 29,224.26 and 11,747.52 is: 16,211.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,177 : 29,224.26 = 11,747.52 : x
  2. Step 2: Convert to fraction form
    21,177/29,224.26 = 11,747.52/x
  3. Step 3: Cross multiply
    21,177x = 29,224.26 × 11,747.52
  4. Step 4: Simplify right side
    21,177x = 343,312,578.84
  5. Step 5: Solve for x
    x = 343,312,578.84/21,177
  6. Step 6: Final answer
    x = 16,211.58

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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.