Home / 21,082.51-29,092.92-11,650.87

Finding the Fourth Proportional to 21,082.51, 29,092.92 and 11,650.87

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Solution

The fourth proportional to 21,082.51, 29,092.92 and 11,650.87 is: 16,077.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,082.51 : 29,092.92 = 11,650.87 : x
  2. Step 2: Convert to fraction form
    21,082.51/29,092.92 = 11,650.87/x
  3. Step 3: Cross multiply
    21,082.51x = 29,092.92 × 11,650.87
  4. Step 4: Simplify right side
    21,082.51x = 338,957,828.84
  5. Step 5: Solve for x
    x = 338,957,828.84/21,082.51
  6. Step 6: Final answer
    x = 16,077.68

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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.