Home / 21,185.29-29,238.20-11,754.46

Finding the Fourth Proportional to 21,185.29, 29,238.20 and 11,754.46

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Solution

The fourth proportional to 21,185.29, 29,238.20 and 11,754.46 is: 16,222.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,185.29 : 29,238.20 = 11,754.46 : x
  2. Step 2: Convert to fraction form
    21,185.29/29,238.20 = 11,754.46/x
  3. Step 3: Cross multiply
    21,185.29x = 29,238.20 × 11,754.46
  4. Step 4: Simplify right side
    21,185.29x = 343,679,252.37
  5. Step 5: Solve for x
    x = 343,679,252.37/21,185.29
  6. Step 6: Final answer
    x = 16,222.54

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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.